def METHOD_NAME():
    assert isinstance(cirq.X, cirq.XPowGate)
    assert isinstance(cirq.Y, cirq.YPowGate)
    assert isinstance(cirq.Z, cirq.ZPowGate)
    assert not isinstance(cirq.X, cirq.YPowGate)
    assert not isinstance(cirq.X, cirq.ZPowGate)
    assert not isinstance(cirq.Y, cirq.XPowGate)
    assert not isinstance(cirq.Y, cirq.ZPowGate)
    assert not isinstance(cirq.Z, cirq.XPowGate)
    assert not isinstance(cirq.Z, cirq.YPowGate)