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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 getMetadata(L):
 """ Get metadata from a LiPD data in memory | Example | m = lipd.getMetadata(D["Africa-ColdAirCave.Sundqvist.2013"]) :param dict L: One LiPD record :return dict d: LiPD record (metadata only) """

    _l = {}
    try:
        # Create a copy. Do not affect the original data.
        _l = copy.deepcopy(L)
        # Remove values fields
        _l = rm_values_fields(_l)
    except Exception as e:
        # Input likely not formatted correctly, though other problems can occur.
        print("Error: Unable to get data. Please check that input is LiPD data: {}".format(e))
    return _l