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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 download_metadata_file(self, outdir, force_rerun=False):
 """Download and load the UniProt XML file"""


        uniprot_xml_file = download_uniprot_file(uniprot_id=self.id,
                                                 outdir=outdir,
                                                 filetype='xml',
                                                 force_rerun=force_rerun)
        self.metadata_path = uniprot_xml_file