def METHOD_NAME() -> None:
    c = Config([])
    s = FakeSystem(cpus=12)
    stage = m.CPU(c, s)
    assert stage.kind == "cpus"
    assert stage.args == []
    assert stage.env(c, s) == unpin_and_test
    assert stage.spec.workers > 0
    shard = (1, 2, 3)
    assert "--cpu-bind" in stage.shard_args(Shard([shard]), c)