docs: def get_handler_name(route: Route, logic: Callable) -> str:
      """Gets the handler name.
  
      :param route: A Route instance.
      :param logic: The logic function.
      :returns: A handler class name.
      """
      if route.handler_name is not None:
          return route.handler_name
      if any(m for m in route.methods if m.method.lower() == 'post'):
          # A list endpoint
          if route.heading != 'API':
              return '{}ListHandler'.format(get_valid_class_name(route.heading))
          return '{}ListHandler'.format(get_valid_class_name(logic.__name__))
      if route.heading != 'API':
          return '{}Handler'.format(get_valid_class_name(route.heading))
      return '{}Handler'.format(get_valid_class_name(logic.__name__))