def notify_modified(room, event, user):
    """Notifies about the modification of a chatroom.

    :param room: the chatroom
    :param event: the event
    :param user: the user performing the action
    """
    tpl = get_plugin_template_module('emails/modified.txt', chatroom=room, event=event, user=user)
    _send(event, tpl)
Notifies about the modification of a chatroom.

    :param room: the chatroom
    :param event: the event
    :param user: the user performing the action