@qml.qnode(dev)
def circuit():
    qml.QubitStateVector(rnd_state, wires=range(n_wires))
    op(wires=range(n_wires)).inv()
    return qml.probs(wires=range(n_wires))
@qml.qnode(dev)
def circuit():
    qml.QubitStateVector(rnd_state, wires=range(n_wires))
    op(wires=range(n_wires)).inv()
    return qml.probs(wires=range(n_wires))