<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def conversations_invite( self, *, channel: str, users: List[str], **kwargs ) -> SlackResponse: """Invites users to a channel. Args: channel (str):
 The channel id. e.g. 'C1234567890' users (list):
 An list of user id's to invite. e.g. ['U2345678901', 'U3456789012'] """

        self._validate_xoxp_token()
        kwargs.update({"channel": channel, "users": users})
        return self.api_call("conversations.invite", json=kwargs)