Call get group member profile API.

        https://devdocs.line.me/en/#get-group-room-member-profile

        Gets the user profile of a member of a group that
        the bot is in. This can be the user ID of a user who has
        not added the bot as a friend or has blocked the bot.

        :param str group_id: Group ID
        :param str user_id: User ID
        :param timeout: (optional) How long to wait for the server
            to send data before giving up, as a float,
            or a (connect timeout, read timeout) float tuple.
            Default is self.http_client.timeout
        :type timeout: float | tuple(float, float)
        :rtype: :py:class:`linebot.models.responses.Profile`
        :return: Profile instance

def get_group_member_profile(self, group_id, user_id, timeout=None):
        """Call get group member profile API.

        https://devdocs.line.me/en/#get-group-room-member-profile

        Gets the user profile of a member of a group that
        the bot is in. This can be the user ID of a user who has
        not added the bot as a friend or has blocked the bot.

        :param str group_id: Group ID
        :param str user_id: User ID
        :param timeout: (optional) How long to wait for the server
            to send data before giving up, as a float,
            or a (connect timeout, read timeout) float tuple.
            Default is self.http_client.timeout
        :type timeout: float | tuple(float, float)
        :rtype: :py:class:`linebot.models.responses.Profile`
        :return: Profile instance
        """
        response = self._get(
            '/v2/bot/group/{group_id}/member/{user_id}'.format(group_id=group_id, user_id=user_id),
            timeout=timeout
        )

        return Profile.new_from_json_dict(response.json)