def get_payload(self):
s = self.to_json()
obj = json.loads(s)
obj1 = strip_none(obj)
obj2 = remove_empty_from_dict(obj1)
obj3 = dict_keys_underscored_to_dashed(obj2)
payload = {self._mn1: {self._mn2:[obj3]}}
return json.dumps(payload, default=lambda o: o.__dict__, sort_keys=True, indent=4)
