'Use this method to get a list of administrators in a chat. On success, returns an Array of ChatMember objects
that contains information about all chat administrators except other bots.
:param chat_id:
:return:'

def get_chat_administrators(self, chat_id):

    result = apihelper.get_chat_administrators(self.token, chat_id)
    ret = []
    for r in result:
        ret.append(types.ChatMember.de_json(r))
    return ret
