def _compute_diff(current, previous):
    if isinstance(current, dict):
        previous = previous or {}
        diff = current.copy()
        for key in set(previous.keys()) - set(diff.keys()):
            diff[key] = ""
        return diff
    return current if current is not None else ""
dataset/ETHPy150Open stripe/stripe-python/stripe/resource.py/_compute_diff/original