(self, app=None)
:type app: wechat_django.models.self.app
:type app: wechat_django.models.self.app
: type app : wechat_django . models . self . app
def __init__(self, app=None):
        """:type app: wechat_django.models.self.app"""
        self._app = app
def __init__ ( self , app = None ) : self . _app = app