def METHOD_NAME(broker):
    now = mitogen.core.now()
    latch = mitogen.core.Latch()
    broker.defer(lambda:
        broker.timers.schedule(
            now + 0.250,
            lambda: latch.put('hi'),
        )
    )
    assert 'hi' == latch.get()
    assert mitogen.core.now() > (now + 0.250)