docs: Improve docstring in to_dict() method (#16777)

It was often confusing to me why this method is even there.

Also using more line breaks and matching how black would format this.

modules/openapi-generator/src/main/resources/python/model_generic.mustache

@@ -122,18 +122,34 @@ class {{classname}}({{#parent}}{{{.}}}{{/parent}}{{^parent}}BaseModel{{/parent}}
         """Create an instance of {{{classname}}} from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            {{#vendorExtensions.x-py-readonly}}
-                            "{{{.}}}",
-                            {{/vendorExtensions.x-py-readonly}}
-                            {{#isAdditionalPropertiesTrue}}
-                            "additional_properties"
-                            {{/isAdditionalPropertiesTrue}}
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        {{#vendorExtensions.x-py-readonly}}
+        * OpenAPI `readOnly` fields are excluded.
+        {{/vendorExtensions.x-py-readonly}}
+        {{#isAdditionalPropertiesTrue}}
+        * Fields in `self.additional_properties` are added to the output dict.
+        {{/isAdditionalPropertiesTrue}}
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                {{#vendorExtensions.x-py-readonly}}
+                "{{{.}}}",
+                {{/vendorExtensions.x-py-readonly}}
+                {{#isAdditionalPropertiesTrue}}
+                "additional_properties",
+                {{/isAdditionalPropertiesTrue}}
+            },
+            exclude_none=True,
+        )
         {{#allVars}}
         {{#isContainer}}
         {{#isArray}}

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/bird.py

@@ -55,12 +55,22 @@ class Bird(BaseModel):
         """Create an instance of Bird from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/category.py

@@ -55,12 +55,22 @@ class Category(BaseModel):
         """Create an instance of Category from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/data_query.py

@@ -58,12 +58,22 @@ class DataQuery(Query):
         """Create an instance of DataQuery from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/default_value.py

@@ -73,12 +73,22 @@ class DefaultValue(BaseModel):
         """Create an instance of DefaultValue from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # set to None if array_string_nullable (nullable) is None
         # and model_fields_set contains the field
         if self.array_string_nullable is None and "array_string_nullable" in self.model_fields_set:

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/number_properties_only.py

@@ -58,12 +58,22 @@ class NumberPropertiesOnly(BaseModel):
         """Create an instance of NumberPropertiesOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/pet.py

@@ -72,12 +72,22 @@ class Pet(BaseModel):
         """Create an instance of Pet from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of category
         if self.category:
             _dict['category'] = self.category.to_dict()

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/query.py

@@ -67,12 +67,22 @@ class Query(BaseModel):
         """Create an instance of Query from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/tag.py

@@ -55,12 +55,22 @@ class Tag(BaseModel):
         """Create an instance of Tag from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/test_query_style_deep_object_explode_true_object_all_of_query_object_parameter.py

@@ -57,12 +57,22 @@ class TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter(BaseMod
         """Create an instance of TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python-disallowAdditionalPropertiesIfNotPresent-true/openapi_client/models/test_query_style_form_explode_true_array_string_query_object_parameter.py

@@ -54,12 +54,22 @@ class TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter(BaseModel):
         """Create an instance of TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python/openapi_client/models/bird.py

@@ -55,12 +55,22 @@ class Bird(BaseModel):
         """Create an instance of Bird from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python/openapi_client/models/category.py

@@ -55,12 +55,22 @@ class Category(BaseModel):
         """Create an instance of Category from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python/openapi_client/models/data_query.py

@@ -58,12 +58,22 @@ class DataQuery(Query):
         """Create an instance of DataQuery from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python/openapi_client/models/default_value.py

@@ -73,12 +73,22 @@ class DefaultValue(BaseModel):
         """Create an instance of DefaultValue from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # set to None if array_string_nullable (nullable) is None
         # and model_fields_set contains the field
         if self.array_string_nullable is None and "array_string_nullable" in self.model_fields_set:

samples/client/echo_api/python/openapi_client/models/number_properties_only.py

@@ -58,12 +58,22 @@ class NumberPropertiesOnly(BaseModel):
         """Create an instance of NumberPropertiesOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python/openapi_client/models/pet.py

@@ -72,12 +72,22 @@ class Pet(BaseModel):
         """Create an instance of Pet from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of category
         if self.category:
             _dict['category'] = self.category.to_dict()

samples/client/echo_api/python/openapi_client/models/query.py

@@ -67,12 +67,22 @@ class Query(BaseModel):
         """Create an instance of Query from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python/openapi_client/models/tag.py

@@ -55,12 +55,22 @@ class Tag(BaseModel):
         """Create an instance of Tag from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python/openapi_client/models/test_query_style_deep_object_explode_true_object_all_of_query_object_parameter.py

@@ -57,12 +57,22 @@ class TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter(BaseMod
         """Create an instance of TestQueryStyleDeepObjectExplodeTrueObjectAllOfQueryObjectParameter from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/client/echo_api/python/openapi_client/models/test_query_style_form_explode_true_array_string_query_object_parameter.py

@@ -54,12 +54,22 @@ class TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter(BaseModel):
         """Create an instance of TestQueryStyleFormExplodeTrueArrayStringQueryObjectParameter from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/additional_properties_any_type.py

@@ -54,13 +54,24 @@ class AdditionalPropertiesAnyType(BaseModel):
         """Create an instance of AdditionalPropertiesAnyType from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/additional_properties_class.py

@@ -54,12 +54,22 @@ class AdditionalPropertiesClass(BaseModel):
         """Create an instance of AdditionalPropertiesClass from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/additional_properties_object.py

@@ -54,13 +54,24 @@ class AdditionalPropertiesObject(BaseModel):
         """Create an instance of AdditionalPropertiesObject from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/additional_properties_with_description_only.py

@@ -54,13 +54,24 @@ class AdditionalPropertiesWithDescriptionOnly(BaseModel):
         """Create an instance of AdditionalPropertiesWithDescriptionOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/all_of_with_single_ref.py

@@ -56,12 +56,22 @@ class AllOfWithSingleRef(BaseModel):
         """Create an instance of AllOfWithSingleRef from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/animal.py

@@ -72,12 +72,22 @@ class Animal(BaseModel):
         """Create an instance of Animal from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/api_response.py

@@ -55,12 +55,22 @@ class ApiResponse(BaseModel):
         """Create an instance of ApiResponse from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/array_of_array_of_model.py

@@ -54,12 +54,22 @@ class ArrayOfArrayOfModel(BaseModel):
         """Create an instance of ArrayOfArrayOfModel from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of each item in another_property (list of list)
         _items = []
         if self.another_property:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/array_of_array_of_number_only.py

@@ -54,12 +54,22 @@ class ArrayOfArrayOfNumberOnly(BaseModel):
         """Create an instance of ArrayOfArrayOfNumberOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/array_of_number_only.py

@@ -54,12 +54,22 @@ class ArrayOfNumberOnly(BaseModel):
         """Create an instance of ArrayOfNumberOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/array_test.py

@@ -58,12 +58,22 @@ class ArrayTest(BaseModel):
         """Create an instance of ArrayTest from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of each item in array_array_of_model (list of list)
         _items = []
         if self.array_array_of_model:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/basque_pig.py

@@ -55,12 +55,22 @@ class BasquePig(BaseModel):
         """Create an instance of BasquePig from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/capitalization.py

@@ -59,12 +59,22 @@ class Capitalization(BaseModel):
         """Create an instance of Capitalization from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/cat.py

@@ -54,12 +54,22 @@ class Cat(Animal):
         """Create an instance of Cat from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/category.py

@@ -54,12 +54,22 @@ class Category(BaseModel):
         """Create an instance of Category from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/circular_reference_model.py

@@ -54,12 +54,22 @@ class CircularReferenceModel(BaseModel):
         """Create an instance of CircularReferenceModel from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of nested
         if self.nested:
             _dict['nested'] = self.nested.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/class_model.py

@@ -54,12 +54,22 @@ class ClassModel(BaseModel):
         """Create an instance of ClassModel from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/client.py

@@ -53,12 +53,22 @@ class Client(BaseModel):
         """Create an instance of Client from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/creature.py

@@ -55,12 +55,22 @@ class Creature(BaseModel):
         """Create an instance of Creature from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of info
         if self.info:
             _dict['info'] = self.info.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/creature_info.py

@@ -53,12 +53,22 @@ class CreatureInfo(BaseModel):
         """Create an instance of CreatureInfo from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/danish_pig.py

@@ -55,12 +55,22 @@ class DanishPig(BaseModel):
         """Create an instance of DanishPig from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/deprecated_object.py

@@ -53,12 +53,22 @@ class DeprecatedObject(BaseModel):
         """Create an instance of DeprecatedObject from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/dog.py

@@ -54,12 +54,22 @@ class Dog(Animal):
         """Create an instance of Dog from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/dummy_model.py

@@ -54,12 +54,22 @@ class DummyModel(BaseModel):
         """Create an instance of DummyModel from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of self_ref
         if self.self_ref:
             _dict['self_ref'] = self.self_ref.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/enum_arrays.py

@@ -75,12 +75,22 @@ class EnumArrays(BaseModel):
         """Create an instance of EnumArrays from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/enum_test.py

@@ -113,12 +113,22 @@ class EnumTest(BaseModel):
         """Create an instance of EnumTest from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # set to None if outer_enum (nullable) is None
         # and model_fields_set contains the field
         if self.outer_enum is None and "outer_enum" in self.model_fields_set:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/file.py

@@ -54,12 +54,22 @@ class File(BaseModel):
         """Create an instance of File from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/file_schema_test_class.py

@@ -55,12 +55,22 @@ class FileSchemaTestClass(BaseModel):
         """Create an instance of FileSchemaTestClass from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of file
         if self.file:
             _dict['file'] = self.file.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/first_ref.py

@@ -54,12 +54,22 @@ class FirstRef(BaseModel):
         """Create an instance of FirstRef from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of self_ref
         if self.self_ref:
             _dict['self_ref'] = self.self_ref.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/foo.py

@@ -53,12 +53,22 @@ class Foo(BaseModel):
         """Create an instance of Foo from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/foo_get_default_response.py

@@ -54,12 +54,22 @@ class FooGetDefaultResponse(BaseModel):
         """Create an instance of FooGetDefaultResponse from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of string
         if self.string:
             _dict['string'] = self.string.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/format_test.py

@@ -112,12 +112,22 @@ class FormatTest(BaseModel):
         """Create an instance of FormatTest from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/has_only_read_only.py

@@ -54,14 +54,26 @@ class HasOnlyReadOnly(BaseModel):
         """Create an instance of HasOnlyReadOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "bar",
-                            "foo",
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * OpenAPI `readOnly` fields are excluded.
+        * OpenAPI `readOnly` fields are excluded.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "bar",
+                "foo",
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/health_check_result.py

@@ -54,12 +54,22 @@ class HealthCheckResult(BaseModel):
         """Create an instance of HealthCheckResult from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # set to None if nullable_message (nullable) is None
         # and model_fields_set contains the field
         if self.nullable_message is None and "nullable_message" in self.model_fields_set:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/inner_dict_with_property.py

@@ -54,12 +54,22 @@ class InnerDictWithProperty(BaseModel):
         """Create an instance of InnerDictWithProperty from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/list_class.py

@@ -54,12 +54,22 @@ class ListClass(BaseModel):
         """Create an instance of ListClass from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/map_of_array_of_model.py

@@ -55,12 +55,22 @@ class MapOfArrayOfModel(BaseModel):
         """Create an instance of MapOfArrayOfModel from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of each value in shop_id_to_org_online_lip_map (dict of array)
         _field_dict_of_array = {}
         if self.shop_id_to_org_online_lip_map:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/map_test.py

@@ -66,12 +66,22 @@ class MapTest(BaseModel):
         """Create an instance of MapTest from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/mixed_properties_and_additional_properties_class.py

@@ -57,12 +57,22 @@ class MixedPropertiesAndAdditionalPropertiesClass(BaseModel):
         """Create an instance of MixedPropertiesAndAdditionalPropertiesClass from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of each value in map (dict)
         _field_dict = {}
         if self.map:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/model200_response.py

@@ -55,12 +55,22 @@ class Model200Response(BaseModel):
         """Create an instance of Model200Response from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/model_return.py

@@ -54,12 +54,22 @@ class ModelReturn(BaseModel):
         """Create an instance of ModelReturn from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/name.py

@@ -57,14 +57,26 @@ class Name(BaseModel):
         """Create an instance of Name from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "snake_case",
-                            "var_123_number",
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * OpenAPI `readOnly` fields are excluded.
+        * OpenAPI `readOnly` fields are excluded.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "snake_case",
+                "var_123_number",
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/nullable_class.py

@@ -66,13 +66,24 @@ class NullableClass(BaseModel):
         """Create an instance of NullableClass from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/nullable_property.py

@@ -66,12 +66,22 @@ class NullableProperty(BaseModel):
         """Create an instance of NullableProperty from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # set to None if name (nullable) is None
         # and model_fields_set contains the field
         if self.name is None and "name" in self.model_fields_set:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/number_only.py

@@ -54,12 +54,22 @@ class NumberOnly(BaseModel):
         """Create an instance of NumberOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/object_to_test_additional_properties.py

@@ -54,12 +54,22 @@ class ObjectToTestAdditionalProperties(BaseModel):
         """Create an instance of ObjectToTestAdditionalProperties from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/object_with_deprecated_fields.py

@@ -58,12 +58,22 @@ class ObjectWithDeprecatedFields(BaseModel):
         """Create an instance of ObjectWithDeprecatedFields from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of deprecated_ref
         if self.deprecated_ref:
             _dict['deprecatedRef'] = self.deprecated_ref.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/order.py

@@ -69,12 +69,22 @@ class Order(BaseModel):
         """Create an instance of Order from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/outer_composite.py

@@ -55,12 +55,22 @@ class OuterComposite(BaseModel):
         """Create an instance of OuterComposite from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/outer_object_with_enum_property.py

@@ -56,12 +56,22 @@ class OuterObjectWithEnumProperty(BaseModel):
         """Create an instance of OuterObjectWithEnumProperty from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # set to None if str_value (nullable) is None
         # and model_fields_set contains the field
         if self.str_value is None and "str_value" in self.model_fields_set:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/parent.py

@@ -55,12 +55,22 @@ class Parent(BaseModel):
         """Create an instance of Parent from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of each value in optional_dict (dict)
         _field_dict = {}
         if self.optional_dict:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/parent_with_optional_dict.py

@@ -55,12 +55,22 @@ class ParentWithOptionalDict(BaseModel):
         """Create an instance of ParentWithOptionalDict from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of each value in optional_dict (dict)
         _field_dict = {}
         if self.optional_dict:

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/pet.py

@@ -72,12 +72,22 @@ class Pet(BaseModel):
         """Create an instance of Pet from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of category
         if self.category:
             _dict['category'] = self.category.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/property_name_collision.py

@@ -56,12 +56,22 @@ class PropertyNameCollision(BaseModel):
         """Create an instance of PropertyNameCollision from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/read_only_first.py

@@ -54,13 +54,24 @@ class ReadOnlyFirst(BaseModel):
         """Create an instance of ReadOnlyFirst from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "bar",
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * OpenAPI `readOnly` fields are excluded.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "bar",
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/second_ref.py

@@ -54,12 +54,22 @@ class SecondRef(BaseModel):
         """Create an instance of SecondRef from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of circular_ref
         if self.circular_ref:
             _dict['circular_ref'] = self.circular_ref.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/self_reference_model.py

@@ -54,12 +54,22 @@ class SelfReferenceModel(BaseModel):
         """Create an instance of SelfReferenceModel from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of nested
         if self.nested:
             _dict['nested'] = self.nested.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/special_model_name.py

@@ -54,12 +54,22 @@ class SpecialModelName(BaseModel):
         """Create an instance of SpecialModelName from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/special_name.py

@@ -67,12 +67,22 @@ class SpecialName(BaseModel):
         """Create an instance of SpecialName from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of var_async
         if self.var_async:
             _dict['async'] = self.var_async.to_dict()

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/tag.py

@@ -54,12 +54,22 @@ class Tag(BaseModel):
         """Create an instance of Tag from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/test_inline_freeform_additional_properties_request.py

@@ -55,13 +55,24 @@ class TestInlineFreeformAdditionalPropertiesRequest(BaseModel):
         """Create an instance of TestInlineFreeformAdditionalPropertiesRequest from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/tiger.py

@@ -53,12 +53,22 @@ class Tiger(BaseModel):
         """Create an instance of Tiger from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/user.py

@@ -61,12 +61,22 @@ class User(BaseModel):
         """Create an instance of User from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         return _dict
 
     @classmethod

samples/openapi3/client/petstore/python-aiohttp/petstore_api/models/with_nested_one_of.py

@@ -57,12 +57,22 @@ class WithNestedOneOf(BaseModel):
         """Create an instance of WithNestedOneOf from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of nested_pig
         if self.nested_pig:
             _dict['nested_pig'] = self.nested_pig.to_dict()

samples/openapi3/client/petstore/python/petstore_api/models/additional_properties_any_type.py

@@ -54,13 +54,24 @@ class AdditionalPropertiesAnyType(BaseModel):
         """Create an instance of AdditionalPropertiesAnyType from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/additional_properties_class.py

@@ -55,13 +55,24 @@ class AdditionalPropertiesClass(BaseModel):
         """Create an instance of AdditionalPropertiesClass from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/additional_properties_object.py

@@ -54,13 +54,24 @@ class AdditionalPropertiesObject(BaseModel):
         """Create an instance of AdditionalPropertiesObject from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/additional_properties_with_description_only.py

@@ -54,13 +54,24 @@ class AdditionalPropertiesWithDescriptionOnly(BaseModel):
         """Create an instance of AdditionalPropertiesWithDescriptionOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/all_of_with_single_ref.py

@@ -57,13 +57,24 @@ class AllOfWithSingleRef(BaseModel):
         """Create an instance of AllOfWithSingleRef from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/animal.py

@@ -73,13 +73,24 @@ class Animal(BaseModel):
         """Create an instance of Animal from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/api_response.py

@@ -56,13 +56,24 @@ class ApiResponse(BaseModel):
         """Create an instance of ApiResponse from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/array_of_array_of_model.py

@@ -55,13 +55,24 @@ class ArrayOfArrayOfModel(BaseModel):
         """Create an instance of ArrayOfArrayOfModel from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of each item in another_property (list of list)
         _items = []
         if self.another_property:

samples/openapi3/client/petstore/python/petstore_api/models/array_of_array_of_number_only.py

@@ -55,13 +55,24 @@ class ArrayOfArrayOfNumberOnly(BaseModel):
         """Create an instance of ArrayOfArrayOfNumberOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/array_of_number_only.py

@@ -55,13 +55,24 @@ class ArrayOfNumberOnly(BaseModel):
         """Create an instance of ArrayOfNumberOnly from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/array_test.py

@@ -59,13 +59,24 @@ class ArrayTest(BaseModel):
         """Create an instance of ArrayTest from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # override the default output from pydantic by calling `to_dict()` of each item in array_array_of_model (list of list)
         _items = []
         if self.array_array_of_model:

samples/openapi3/client/petstore/python/petstore_api/models/basque_pig.py

@@ -56,13 +56,24 @@ class BasquePig(BaseModel):
         """Create an instance of BasquePig from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/capitalization.py

@@ -60,13 +60,24 @@ class Capitalization(BaseModel):
         """Create an instance of Capitalization from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/cat.py

@@ -55,13 +55,24 @@ class Cat(Animal):
         """Create an instance of Cat from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():

samples/openapi3/client/petstore/python/petstore_api/models/category.py

@@ -55,13 +55,24 @@ class Category(BaseModel):
         """Create an instance of Category from a JSON string"""
         return cls.from_dict(json.loads(json_str))
 
-    def to_dict(self):
-        """Returns the dictionary representation of the model using alias"""
-        _dict = self.model_dump(by_alias=True,
-                          exclude={
-                            "additional_properties"
-                          },
-                          exclude_none=True)
+    def to_dict(self) -> Dict[str, Any]:
+        """Return the dictionary representation of the model using alias.
+
+        This has the following differences from calling pydantic's
+        `self.model_dump(by_alias=True)`:
+
+        * `None` is only added to the output dict for nullable fields that
+          were set at model initialization. Other fields with value `None`
+          are ignored.
+        * Fields in `self.additional_properties` are added to the output dict.
+        """
+        _dict = self.model_dump(
+            by_alias=True,
+            exclude={
+                "additional_properties",
+            },
+            exclude_none=True,
+        )
         # puts key-value pairs in additional_properties in the top level
         if self.additional_properties is not None:
             for _key, _value in self.additional_properties.items():