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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_users( self, user_ids: Iterable[Union[int, str]] ) -> Union["pyrogram.User", List["pyrogram.User"]]: """Use this method to get information about a user. You can retrieve up to 200 users at once. Args: user_ids (``iterable``):
 A list of User identifiers (id or username) or a single user id/username. For a contact that exists in your Telegram address book you can use his phone number (str). Iterators and Generators are also accepted. Returns: On success and in case *user_ids* was an iterable, the returned value will be a list of the requested :obj:`Users <User>` even if a list contains just one element, otherwise if *user_ids* was an integer or string, the single requested :obj:`User` is returned. Raises: :class:`RPCError <pyrogram.RPCError>` in case of a Telegram RPC error. """

        is_iterable = not isinstance(user_ids, (int, str))
        user_ids = list(user_ids) if is_iterable else [user_ids]
        user_ids = [self.resolve_peer(i) for i in user_ids]

        r = self.send(
            functions.users.GetUsers(
                id=user_ids
            )
        )

        users = []

        for i in r:
            users.append(pyrogram.User._parse(self, i))

        return users if is_iterable else users[0]