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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _one_prob_per_shard(args: Dict[str, Any]) -> float: """Returns the probability of getting a one measurement on a state shard. """

    index = args['index']

    state = _state_shard(args) * _one_projector(args, index)
    norm = np.linalg.norm(state)
    return norm * norm