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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 _get_G2P(data):
 """ A VEP plugin that uses G2P allelic requirements to assess variants in genes for potential phenotype involvement. """

    G2P_file = os.path.realpath(tz.get_in(("genome_resources", "variation", "genotype2phenotype"), data))
    args = ["--plugin", "G2P,file:%s" % (G2P_file)]
    if G2P_file:
        return args
    else:
        return []