'Returns the attributes of one watch/alarm.
The show_watch method returns the attributes of one watch
or all watches if no watch_name is passed.
:param ctxt: RPC context.
:param watch_name: Name of the watch/alarm you want to see,
or None to see all'

def show_watch(self, ctxt, watch_name):

    return self.call(ctxt, self.make_msg('show_watch', watch_name=watch_name))
