The function decorated by the "post_load" decorator will undergo changes in parameter types as the function name changes.

class AdGroupUpsertSchemaV3(ma.SQLAlchemySchema): name = fields.String(required=True)

class Meta:
    model = models.AdGroup
    fields = 'name'
    load_instance = True

@post_load
def a(self, data, *args, **kwargs):
    print(type(data))
    return data

flask-marshmallow==0.14.0 marshmallow==3.17.0 marshmallow-sqlalchemy==0.28.1

like the code above，when post_load decorator func name is a-m, data type is dict, when func name is n-z, data type is <class 'modules.advertising.group.models.AdGroup'>

why why why?

marshmallow-code / marshmallow-sqlalchemy

The function decorated by the "post_load" decorator will undergo changes in parameter types as the function name changes. #545