code: def default_input_format(content_type='application/json', apply_globally=False, api=None):
      
      def decorator(formatter):
          formatter = hug.output_format.content_type(content_type)(formatter)
          if apply_globally:
              hug.defaults.input_format[content_type] = formatter
          else:
              apply_to_api = hug.API(api) if api else hug.api.from_object(formatter)
              apply_to_api.http.set_input_format(content_type, formatter)
          return formatter
      return decorator
docs: A decorator that allows you to override the default output format for an API