>>> pwc_example = [
[{'duration': 1.0, 'value': 3},
{'duration': 0.5, 'value': -2},
{'duration': 0.5, 'value': 4}],
[{'duration': 1.0, 'value': 2},
{'duration': 0.5, 'value': 3},
{'duration': 0.5, 'value': -1}]
]
>>> qctrl.utils.pwc_pairs_to_arrays(pwc_example)
(array([1., 0.5, 0.5]),
array([[3, -2, 4],
[2, 3, -1]]),
1)