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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 print_probabilities(state: State, ndigits: int = 4, file: TextIO = None) -> None: """ Pretty print state probabilities. Args: state: ndigits: Number of digits of accuracy file: Output stream (Defaults to stdout) """

    prob = bk.evaluate(state.probabilities())
    for index, prob in np.ndenumerate(prob):
        prob = round(prob, ndigits)
        if prob == 0.0:
            continue
        ket = "".join([str(n) for n in index])
        print(ket, ":", prob, file=file)