old_contents: """Flask extension module."""
  
  from __future__ import absolute_import
  import warnings
  
  from flask import request as flask_request
  
  from dependency_injector import providers, errors
  
  
  warnings.warn(
      'Module "dependency_injector.ext.aiohttp" is deprecated since '
      'version 4.0.0. Use "dependency_injector.wiring" module instead.',
      category=DeprecationWarning,
  )
  
  
  request = providers.Object(flask_request)
  
  
  class Application(providers.Singleton):
      """Flask application provider."""
  
  
  class Extension(providers.Singleton):
      """Flask extension provider."""
  
  
  class View(providers.Callable):
      """Flask view provider."""
  
      def as_view(self):
          """Return Flask view function."""
          return as_view(self)
  
  
  class ClassBasedView(providers.Factory):
      """Flask class-based view provider."""
  
      def as_view(self, name):
          """Return Flask view function."""
          return as_view(self, name)
  
  
  def as_view(provider, name=None):
      """Transform class-based view provider to view function."""
      if isinstance(provider, providers.Factory):
          def view(*args, **kwargs):
              self = provider()
              return self.dispatch_request(*args, **kwargs)
  
          assert name, 'Argument "endpoint" is required for class-based views'
          view.__name__ = name
      elif isinstance(provider, providers.Callable):
          def view(*args, **kwargs):
              return provider(*args, **kwargs)
  
          view.__name__ = provider.provides.__name__
      else:
          raise errors.Error('Undefined provider type')
  
      view.__doc__ = provider.provides.__doc__
      view.__module__ = provider.provides.__module__
  
      if isinstance(provider.provides, type):
          view.view_class = provider.provides
  
      if hasattr(provider.provides, 'decorators'):
          for decorator in provider.provides.decorators:
              view = decorator(view)
  
      if hasattr(provider.provides, 'methods'):
          view.methods = provider.provides.methods
  
      if hasattr(provider.provides, 'provide_automatic_options'):
          view.provide_automatic_options = provider.provides.provide_automatic_options
  
      return view
  
new_contents: """Flask extension module."""
  
  from __future__ import absolute_import
  import warnings
  
  from flask import request as flask_request
  
  from dependency_injector import providers, errors
  
  
  warnings.warn(
      'Module "dependency_injector.ext.flask" is deprecated since '
      'version 4.0.0. Use "dependency_injector.wiring" module instead.',
      category=DeprecationWarning,
  )
  
  
  request = providers.Object(flask_request)
  
  
  class Application(providers.Singleton):
      """Flask application provider."""
  
  
  class Extension(providers.Singleton):
      """Flask extension provider."""
  
  
  class View(providers.Callable):
      """Flask view provider."""
  
      def as_view(self):
          """Return Flask view function."""
          return as_view(self)
  
  
  class ClassBasedView(providers.Factory):
      """Flask class-based view provider."""
  
      def as_view(self, name):
          """Return Flask view function."""
          return as_view(self, name)
  
  
  def as_view(provider, name=None):
      """Transform class-based view provider to view function."""
      if isinstance(provider, providers.Factory):
          def view(*args, **kwargs):
              self = provider()
              return self.dispatch_request(*args, **kwargs)
  
          assert name, 'Argument "endpoint" is required for class-based views'
          view.__name__ = name
      elif isinstance(provider, providers.Callable):
          def view(*args, **kwargs):
              return provider(*args, **kwargs)
  
          view.__name__ = provider.provides.__name__
      else:
          raise errors.Error('Undefined provider type')
  
      view.__doc__ = provider.provides.__doc__
      view.__module__ = provider.provides.__module__
  
      if isinstance(provider.provides, type):
          view.view_class = provider.provides
  
      if hasattr(provider.provides, 'decorators'):
          for decorator in provider.provides.decorators:
              view = decorator(view)
  
      if hasattr(provider.provides, 'methods'):
          view.methods = provider.provides.methods
  
      if hasattr(provider.provides, 'provide_automatic_options'):
          view.provide_automatic_options = provider.provides.provide_automatic_options
  
      return view
  
subject: Fix flask ext warning message (#345)