def __init__(self, userid=None, consumer_key=None, *args, **kargs):
Predicate.__init__(self, *args, **kargs)
self.userid = userid
self.consumer_key = consumer_key
def __init__(self, consumer_key=None, *args, **kargs):
Predicate.__init__(self, *args, **kargs)
# We can ask for a particular consumer
self.consumer_key = consumer_key