diff --git a/modules/openapi-generator/src/main/resources/swift6/JSONEncodingHelper.mustache b/modules/openapi-generator/src/main/resources/swift6/JSONEncodingHelper.mustache
index d3045ec1edc..d6e7308600f 100644
--- a/modules/openapi-generator/src/main/resources/swift6/JSONEncodingHelper.mustache
+++ b/modules/openapi-generator/src/main/resources/swift6/JSONEncodingHelper.mustache
@@ -26,20 +26,4 @@ import Foundation
         return params
     }
 
-    {{#nonPublicApi}}internal{{/nonPublicApi}}{{^nonPublicApi}}open{{/nonPublicApi}} class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/alamofireLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/alamofireLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/alamofireLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/alamofireLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/apiNonStaticMethod/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/apiNonStaticMethod/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/apiNonStaticMethod/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/apiNonStaticMethod/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/asyncAwaitLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/asyncAwaitLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/asyncAwaitLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/asyncAwaitLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/combineDeferredLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/combineDeferredLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/combineDeferredLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/combineDeferredLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/combineLibrary/Sources/CombineLibrary/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/combineLibrary/Sources/CombineLibrary/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/combineLibrary/Sources/CombineLibrary/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/combineLibrary/Sources/CombineLibrary/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/default/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/default/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/default/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/default/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/objcCompatible/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/objcCompatible/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/objcCompatible/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/objcCompatible/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/oneOf/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/oneOf/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/oneOf/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/oneOf/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/resultLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/resultLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
index 208ee2c917e..7d61b0e7756 100644
--- a/samples/client/petstore/swift6/resultLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/resultLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ internal class JSONEncodingHelper {
         return params
     }
 
-    internal class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/urlsessionLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/urlsessionLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/urlsessionLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/urlsessionLibrary/Sources/PetstoreClient/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }
diff --git a/samples/client/petstore/swift6/validation/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift b/samples/client/petstore/swift6/validation/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
index d28af2eba97..71c8b4e84fa 100644
--- a/samples/client/petstore/swift6/validation/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
+++ b/samples/client/petstore/swift6/validation/PetstoreClient/Classes/OpenAPIs/Infrastructure/JSONEncodingHelper.swift
@@ -26,20 +26,4 @@ open class JSONEncodingHelper {
         return params
     }
 
-    open class func encodingParameters(forEncodableObject encodableObj: Any?, codableHelper: CodableHelper) -> [String: any Sendable]? {
-        var params: [String: any Sendable]?
-
-        if let encodableObj = encodableObj {
-            do {
-                let data = try JSONSerialization.data(withJSONObject: encodableObj, options: .prettyPrinted)
-                params = JSONDataEncoding.encodingParameters(jsonData: data)
-            } catch {
-                print(error.localizedDescription)
-                return nil
-            }
-        }
-
-        return params
-    }
-
 }