'Get a list of participating clients\' data values'

def __iter__(self):

    self._ensure_parent()
    children = self._get_children()
    for child in children:
        try:
            (d, _) = self.client.retry(self.client.get, ((self.path + '/') + child))
            (yield d.decode('utf-8'))
        except NoNodeError:
            pass
