1[
2    cirq.MeasurementGate(3, 'z', ()),
3    cirq.MeasurementGate(3, 'z', (True, False, True)),
4    cirq.MeasurementGate(3, cirq.MeasurementKey(path=('a', 'b'), name='z'), (True, False), (1, 2, 3)),
5]
6