def METHOD_NAME(self, channel, image):
    """
    Called from the reference viewer shell when a new image has
    been added to a channel.
    """
    chname = channel.name
    # Only update our GUI if the activity is in the focused
    # channel
    if self.active == chname:
        imname = image.get('name', 'NONAME')
        self.set_info("A new image '%s' has been added to channel %s" % (
            imname, chname))
    return True