Sends connected client list of currently active users in the chatroom

def users_changed_handler(stream):
    """
    Sends connected client list of currently active users in the chatroom
    """
    while True:
        yield from stream.get()

        # Get list list of current active users
        users = [
            {'username': username, 'uuid': uuid_str}
            for username, uuid_str in ws_connections.values()
        ]

        # Make packet with list of new users (sorted by username)
        packet = {
            'type': 'users-changed',
            'value': sorted(users, key=lambda i: i['username'])
        }
        logger.debug(packet)
        yield from fanout_message(ws_connections.keys(), packet)