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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 calc_average_parameters(parameter_layers):
 """Takes a group of equal length lists and averages them across each index. Returns ------- mean_layers: [float] List of values averaged by index overall_mean: float Mean of the averaged values. """

        mean_layers = [numpy.mean(x) if x[0] else 0 for x in parameter_layers]
        overall_mean = numpy.mean([x for x in mean_layers if x])
        return mean_layers, overall_mean