code: async def serialize(self, value, native=False):
          '''
          Calls the field's ``to_python`` method.
          Override in derived classes of fields which involve models, such as ``ModelField``
          '''
          if native:
              return self.to_python(value)
          return self.to_data(valueync def serialize(self, value, native=False):
          '''
          Calls the field's ``to_python`` method.
          Override in derived classes of fields which involve models, such as ``ModelField``
          '''
          if native:
              return self.to_python(value)
          return self.to_data(value)
docs: Calls the field's ``to_python`` method.
          Override in derived classes of fields which involve models, such as ``ModelField``