old_contents: """The Code, that uses IoC container."""
  
  from dependency_injector import catalogs
  from dependency_injector import providers
  
  from ioc_example import Service
  from ioc_example import Client
  
  
  class Components(catalogs.DeclarativeCatalog):
      """Components catalog."""
  
      service = providers.Factory(Service)
      client = providers.Factory(Client, service=service)
  
  
  if __name__ == '__main__':
      client = Components.client()  # Application creates Client's instance
  
new_contents: """The Code, that uses IoC container."""
  
  from dependency_injector import catalogs
  from dependency_injector import providers
  
  from ioc_example import Service
  from ioc_example import Client
  
  
  class Components(catalogs.DeclarativeCatalog):
      """Components catalog."""
  
      service = providers.Factory(Service)
  
      client = providers.Factory(Client, service=service)
  
  
  if __name__ == '__main__':
      client = Components.client()  # Application creates Client's instance
  
subject: Update oc_container_example