def payer_identity(self, value):
     if isinstance(value, UserIdentity):
         self._payer_identity = value
     else:
         self._payer_identity = UserIdentity.from_alipay_dict(value)
 def buyer(self, value):
     if isinstance(value, UserIdentity):
         self._buyer = value
     else:
         self._buyer = UserIdentity.from_alipay_dict(value)
 def user_info(self, value):
     if isinstance(value, UserIdentity):
         self._user_info = value
     else:
         self._user_info = UserIdentity.from_alipay_dict(value)
 def external_seller(self, value):
     if isinstance(value, UserIdentity):
         self._external_seller = value
     else:
         self._external_seller = UserIdentity.from_alipay_dict(value)