def channels_add_owner(self, room_id, user_id=None, username=None, **kwargs):
if user_id:<EOL><INDENT>return self.__call_api_post('<STR_LIT>', roomId=room_id, userId=user_id, kwargs=kwargs)<EOL><DEDENT>elif username:<EOL><INDENT>return self.__call_api_post('<STR_LIT>', roomId=room_id, username=username, kwargs=kwargs)<EOL><DEDENT>else:<EOL><INDENT>raise RocketMissingParamException('<STR_LIT>')<EOL><DEDENT>
Gives the role of owner for a user in the current channel.