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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 showMetadata(dat):
 """ Display the metadata specified LiPD in pretty print | Example | showMetadata(D["Africa-ColdAirCave.Sundqvist.2013"]) :param dict dat: Metadata :return none: """

    _tmp = rm_values_fields(copy.deepcopy(dat))
    print(json.dumps(_tmp, indent=2))
    return