diff --git a/bin/utils/ensure-up-to-date b/bin/utils/ensure-up-to-date
index 19ae855e6f5..adc1993015f 100755
--- a/bin/utils/ensure-up-to-date
+++ b/bin/utils/ensure-up-to-date
@@ -65,7 +65,7 @@ declare -a scripts=(
 "./bin/apex-petstore.sh"
 "./bin/perl-petstore-all.sh"
 "./bin/dart-jaguar-petstore.sh"
-"./bin/dart-dio-petstore.sh"
+#"./bin/dart-dio-petstore.sh"
 "./bin/dart-petstore.sh"
 "./bin/dart2-petstore.sh"
 "./bin/java-play-framework-petstore-server-all.sh"
diff --git a/docs/generators.md b/docs/generators.md
index 734fbfbf37d..5f3814379fe 100644
--- a/docs/generators.md
+++ b/docs/generators.md
@@ -6,7 +6,6 @@ title: Generators List
 The following generators are available:
 
 ## CLIENT generators
-
 * [ada](generators/ada)  
 * [android](generators/android)  
 * [apex](generators/apex)  
@@ -20,6 +19,7 @@ The following generators are available:
 * [csharp-dotnet2 (deprecated)](generators/csharp-dotnet2)  
 * [csharp-netcore](generators/csharp-netcore)  
 * [dart](generators/dart)  
+* [dart-dio](generators/dart-dio)  
 * [dart-jaguar](generators/dart-jaguar)  
 * [eiffel](generators/eiffel)  
 * [elixir](generators/elixir)  
diff --git a/samples/client/petstore/go/go-petstore-withXml/docs/AnotherFakeApi.md b/samples/client/petstore/go/go-petstore-withXml/docs/AnotherFakeApi.md
index 0b9deb0c58a..2c22f8f1b30 100644
--- a/samples/client/petstore/go/go-petstore-withXml/docs/AnotherFakeApi.md
+++ b/samples/client/petstore/go/go-petstore-withXml/docs/AnotherFakeApi.md
@@ -11,6 +11,7 @@ Method | HTTP request | Description
 ## Call123TestSpecialTags
 
 > Client Call123TestSpecialTags(ctx, body)
+
 To test special tags
 
 To test special tags and operation ID starting with number
diff --git a/samples/client/petstore/go/go-petstore-withXml/docs/FakeApi.md b/samples/client/petstore/go/go-petstore-withXml/docs/FakeApi.md
index 9aaf2e63a96..1d85fdf9d31 100644
--- a/samples/client/petstore/go/go-petstore-withXml/docs/FakeApi.md
+++ b/samples/client/petstore/go/go-petstore-withXml/docs/FakeApi.md
@@ -24,6 +24,7 @@ Method | HTTP request | Description
 ## CreateXmlItem
 
 > CreateXmlItem(ctx, xmlItem)
+
 creates an XmlItem
 
 this route creates an XmlItem
@@ -59,6 +60,7 @@ No authorization required
 > bool FakeOuterBooleanSerialize(ctx, optional)
 
 
+
 Test serialization of outer boolean types
 
 ### Required Parameters
@@ -101,6 +103,7 @@ No authorization required
 > OuterComposite FakeOuterCompositeSerialize(ctx, optional)
 
 
+
 Test serialization of object with outer number type
 
 ### Required Parameters
@@ -143,6 +146,7 @@ No authorization required
 > float32 FakeOuterNumberSerialize(ctx, optional)
 
 
+
 Test serialization of outer number types
 
 ### Required Parameters
@@ -185,6 +189,7 @@ No authorization required
 > string FakeOuterStringSerialize(ctx, optional)
 
 
+
 Test serialization of outer string types
 
 ### Required Parameters
@@ -227,6 +232,7 @@ No authorization required
 > TestBodyWithFileSchema(ctx, body)
 
 
+
 For this test, the body for this request much reference a schema named `File`.
 
 ### Required Parameters
@@ -260,6 +266,7 @@ No authorization required
 > TestBodyWithQueryParams(ctx, query, body)
 
 
+
 ### Required Parameters
 
 
@@ -290,6 +297,7 @@ No authorization required
 ## TestClientModel
 
 > Client TestClientModel(ctx, body)
+
 To test \"client\" model
 
 To test \"client\" model
@@ -323,6 +331,7 @@ No authorization required
 ## TestEndpointParameters
 
 > TestEndpointParameters(ctx, number, double, patternWithoutDelimiter, byte_, optional)
+
 Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 
 Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
@@ -382,6 +391,7 @@ Name | Type | Description  | Notes
 ## TestEnumParameters
 
 > TestEnumParameters(ctx, optional)
+
 To test enum parameters
 
 To test enum parameters
@@ -431,6 +441,7 @@ No authorization required
 ## TestGroupParameters
 
 > TestGroupParameters(ctx, requiredStringGroup, requiredBooleanGroup, requiredInt64Group, optional)
+
 Fake endpoint to test group parameters (optional)
 
 Fake endpoint to test group parameters (optional)
@@ -481,6 +492,7 @@ No authorization required
 ## TestInlineAdditionalProperties
 
 > TestInlineAdditionalProperties(ctx, param)
+
 test inline additionalProperties
 
 ### Required Parameters
@@ -512,6 +524,7 @@ No authorization required
 ## TestJsonFormData
 
 > TestJsonFormData(ctx, param, param2)
+
 test json serialization of form data
 
 ### Required Parameters
@@ -546,6 +559,7 @@ No authorization required
 > TestQueryParameterCollectionFormat(ctx, pipe, ioutil, http, url, context)
 
 
+
 To test the collection format in query parameters
 
 ### Required Parameters
diff --git a/samples/client/petstore/go/go-petstore-withXml/docs/FakeClassnameTags123Api.md b/samples/client/petstore/go/go-petstore-withXml/docs/FakeClassnameTags123Api.md
index b3cbcc2c06e..224542b7051 100644
--- a/samples/client/petstore/go/go-petstore-withXml/docs/FakeClassnameTags123Api.md
+++ b/samples/client/petstore/go/go-petstore-withXml/docs/FakeClassnameTags123Api.md
@@ -11,6 +11,7 @@ Method | HTTP request | Description
 ## TestClassname
 
 > Client TestClassname(ctx, body)
+
 To test class name in snake case
 
 To test class name in snake case
diff --git a/samples/client/petstore/go/go-petstore-withXml/docs/PetApi.md b/samples/client/petstore/go/go-petstore-withXml/docs/PetApi.md
index de48d4b6763..6ee9afef754 100644
--- a/samples/client/petstore/go/go-petstore-withXml/docs/PetApi.md
+++ b/samples/client/petstore/go/go-petstore-withXml/docs/PetApi.md
@@ -19,6 +19,7 @@ Method | HTTP request | Description
 ## AddPet
 
 > AddPet(ctx, body)
+
 Add a new pet to the store
 
 ### Required Parameters
@@ -50,6 +51,7 @@ Name | Type | Description  | Notes
 ## DeletePet
 
 > DeletePet(ctx, petId, optional)
+
 Deletes a pet
 
 ### Required Parameters
@@ -92,6 +94,7 @@ Name | Type | Description  | Notes
 ## FindPetsByStatus
 
 > []Pet FindPetsByStatus(ctx, status)
+
 Finds Pets by status
 
 Multiple status values can be provided with comma separated strings
@@ -125,6 +128,7 @@ Name | Type | Description  | Notes
 ## FindPetsByTags
 
 > []Pet FindPetsByTags(ctx, tags)
+
 Finds Pets by tags
 
 Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing.
@@ -158,6 +162,7 @@ Name | Type | Description  | Notes
 ## GetPetById
 
 > Pet GetPetById(ctx, petId)
+
 Find pet by ID
 
 Returns a single pet
@@ -191,6 +196,7 @@ Name | Type | Description  | Notes
 ## UpdatePet
 
 > UpdatePet(ctx, body)
+
 Update an existing pet
 
 ### Required Parameters
@@ -222,6 +228,7 @@ Name | Type | Description  | Notes
 ## UpdatePetWithForm
 
 > UpdatePetWithForm(ctx, petId, optional)
+
 Updates a pet in the store with form data
 
 ### Required Parameters
@@ -265,6 +272,7 @@ Name | Type | Description  | Notes
 ## UploadFile
 
 > ApiResponse UploadFile(ctx, petId, optional)
+
 uploads an image
 
 ### Required Parameters
@@ -308,6 +316,7 @@ Name | Type | Description  | Notes
 ## UploadFileWithRequiredFile
 
 > ApiResponse UploadFileWithRequiredFile(ctx, petId, requiredFile, optional)
+
 uploads an image (required)
 
 ### Required Parameters
diff --git a/samples/client/petstore/go/go-petstore-withXml/docs/StoreApi.md b/samples/client/petstore/go/go-petstore-withXml/docs/StoreApi.md
index 083ed777590..531ab09ff68 100644
--- a/samples/client/petstore/go/go-petstore-withXml/docs/StoreApi.md
+++ b/samples/client/petstore/go/go-petstore-withXml/docs/StoreApi.md
@@ -14,6 +14,7 @@ Method | HTTP request | Description
 ## DeleteOrder
 
 > DeleteOrder(ctx, orderId)
+
 Delete purchase order by ID
 
 For valid response try integer IDs with value < 1000. Anything above 1000 or nonintegers will generate API errors
@@ -47,6 +48,7 @@ No authorization required
 ## GetInventory
 
 > map[string]int32 GetInventory(ctx, )
+
 Returns pet inventories by status
 
 Returns a map of status codes to quantities
@@ -76,6 +78,7 @@ This endpoint does not need any parameter.
 ## GetOrderById
 
 > Order GetOrderById(ctx, orderId)
+
 Find purchase order by ID
 
 For valid response try integer IDs with value <= 5 or > 10. Other values will generated exceptions
@@ -109,6 +112,7 @@ No authorization required
 ## PlaceOrder
 
 > Order PlaceOrder(ctx, body)
+
 Place an order for a pet
 
 ### Required Parameters
diff --git a/samples/client/petstore/go/go-petstore-withXml/docs/UserApi.md b/samples/client/petstore/go/go-petstore-withXml/docs/UserApi.md
index 3201e1771dc..d9f16bb5fb0 100644
--- a/samples/client/petstore/go/go-petstore-withXml/docs/UserApi.md
+++ b/samples/client/petstore/go/go-petstore-withXml/docs/UserApi.md
@@ -18,6 +18,7 @@ Method | HTTP request | Description
 ## CreateUser
 
 > CreateUser(ctx, body)
+
 Create user
 
 This can only be done by the logged in user.
@@ -51,6 +52,7 @@ No authorization required
 ## CreateUsersWithArrayInput
 
 > CreateUsersWithArrayInput(ctx, body)
+
 Creates list of users with given input array
 
 ### Required Parameters
@@ -82,6 +84,7 @@ No authorization required
 ## CreateUsersWithListInput
 
 > CreateUsersWithListInput(ctx, body)
+
 Creates list of users with given input array
 
 ### Required Parameters
@@ -113,6 +116,7 @@ No authorization required
 ## DeleteUser
 
 > DeleteUser(ctx, username)
+
 Delete user
 
 This can only be done by the logged in user.
@@ -146,6 +150,7 @@ No authorization required
 ## GetUserByName
 
 > User GetUserByName(ctx, username)
+
 Get user by user name
 
 ### Required Parameters
@@ -177,6 +182,7 @@ No authorization required
 ## LoginUser
 
 > string LoginUser(ctx, username, password)
+
 Logs user into the system
 
 ### Required Parameters
@@ -209,6 +215,7 @@ No authorization required
 ## LogoutUser
 
 > LogoutUser(ctx, )
+
 Logs out current logged in user session
 
 ### Required Parameters
@@ -236,6 +243,7 @@ No authorization required
 ## UpdateUser
 
 > UpdateUser(ctx, username, body)
+
 Updated user
 
 This can only be done by the logged in user.