'Checks if this event is correctly authed.
Args:
event: the event being checked.
auth_events (dict: event-key -> event): the existing room state.
Returns:
True if the auth checks pass.'

def check(self, event, auth_events, do_sig_check=True):

    with Measure(self.clock, 'auth.check'):
        event_auth.check(event, auth_events, do_sig_check=do_sig_check)
