code: def on_bind_field(self, field_name, field_obj):
          
          if _MARSHMALLOW_VERSION_INFO[0] < 3:
              if not field_obj.load_from:
                  field_obj.load_from = self.inflect(field_name)
          else:
              if not field_obj.data_key:
                  field_obj.data_key = self.inflect(field_name)
          return None
docs: Schema hook override. When binding fields, set ``data_key`` (on marshmallow 3) or
          load_from (on marshmallow 2) to the inflected form of field_name.