diff --git a/modules/openapi-generator/src/main/resources/swift5/libraries/urlsession/URLSessionImplementations.mustache b/modules/openapi-generator/src/main/resources/swift5/libraries/urlsession/URLSessionImplementations.mustache
index a6e7fe0b3fb8..60cda3243d8b 100644
--- a/modules/openapi-generator/src/main/resources/swift5/libraries/urlsession/URLSessionImplementations.mustache
+++ b/modules/openapi-generator/src/main/resources/swift5/libraries/urlsession/URLSessionImplementations.mustache
@@ -46,15 +46,6 @@ private var credentialStore = SynchronizedDictionary<Int, URLCredential>()
      */
     {{#nonPublicApi}}internal{{/nonPublicApi}}{{^nonPublicApi}}public{{/nonPublicApi}} var taskDidReceiveChallenge: {{projectName}}APIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    {{#nonPublicApi}}internal{{/nonPublicApi}}{{^nonPublicApi}}public{{/nonPublicApi}} var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required {{#nonPublicApi}}internal{{/nonPublicApi}}{{^nonPublicApi}}public{{/nonPublicApi}} init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/anycodableLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/anycodableLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/anycodableLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/anycodableLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/asyncAwaitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/asyncAwaitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/asyncAwaitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/asyncAwaitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/combineLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/combineLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/combineLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/combineLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/default/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/default/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/default/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/default/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/deprecated/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/deprecated/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/deprecated/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/deprecated/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/frozenEnums/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/frozenEnums/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/frozenEnums/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/frozenEnums/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 0a81c0ec9354..bb1f168079ea 100644
--- a/samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/nonPublicApi/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ internal class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     internal var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    internal var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required internal init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/objcCompatible/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/objcCompatible/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/objcCompatible/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/objcCompatible/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/oneOf/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/promisekitLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/readonlyProperties/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/readonlyProperties/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/readonlyProperties/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/readonlyProperties/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/resultLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/resultLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/resultLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/resultLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/rxswiftLibrary/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/urlsessionLibrary/Sources/PetstoreClient/URLSessionImplementations.swift b/samples/client/petstore/swift5/urlsessionLibrary/Sources/PetstoreClient/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/urlsessionLibrary/Sources/PetstoreClient/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/urlsessionLibrary/Sources/PetstoreClient/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/validation/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/validation/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/validation/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/validation/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }
diff --git a/samples/client/petstore/swift5/x-swift-hashable/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift b/samples/client/petstore/swift5/x-swift-hashable/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
index 6315677bcdfc..5d75bbfecb7d 100644
--- a/samples/client/petstore/swift5/x-swift-hashable/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
+++ b/samples/client/petstore/swift5/x-swift-hashable/PetstoreClient/Classes/OpenAPIs/URLSessionImplementations.swift
@@ -46,15 +46,6 @@ open class URLSessionRequestBuilder<T>: RequestBuilder<T> {
      */
     public var taskDidReceiveChallenge: PetstoreClientAPIChallengeHandler?
 
-    /**
-     May be assigned if you want to do any of those things:
-     - control the task completion
-     - intercept and handle errors like authorization
-     - retry the request.
-     */
-    @available(*, unavailable, message: "Please override execute() method to intercept and handle errors like authorization or retry the request. Check the Wiki for more info. https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-do-i-implement-bearer-token-authentication-with-urlsession-on-the-swift-api-client")
-    public var taskCompletionShouldRetry: ((Data?, URLResponse?, Error?, @escaping (Bool) -> Void) -> Void)?
-
     required public init(method: String, URLString: String, parameters: [String: Any]?, headers: [String: String] = [:], requiresAuthentication: Bool) {
         super.init(method: method, URLString: URLString, parameters: parameters, headers: headers, requiresAuthentication: requiresAuthentication)
     }