def METHOD_NAME():
    ops = [
        (
            netket.operator.PotentialEnergy(hilb, v1),
            netket.operator.PotentialEnergy(hilb, v1),
            netket.operator.PotentialEnergy(hilb, v2),
        ),
        (
            netket.operator.KineticEnergy(hilb, mass=20.0),
            netket.operator.KineticEnergy(hilb, mass=20.0),
            netket.operator.KineticEnergy(hilb, mass=2.0),
        ),
        (0.3 * pot1 + 0.2 * kin2, 0.3 * pot1 + 0.2 * kin2, 0.3 * pot1 + 0.2 * kin1),
    ]
    for op1a, op1b, op2 in ops:
        assert hash(op1a) == hash(op1b)
        assert hash(op1a) != hash(op2)
        assert op1a == op1b
        assert op1a != op2