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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 downloadDatabases(self, savepath=None, unpack=False):
 """ Download databases. Parameters: savepath (str):
 Defaults to current working dir. unpack (bool):
 Unpack the zip file. """

        url = self.url('/diagnostics/databases')
        filepath = utils.download(url, self._token, None, savepath, self._session, unpack=unpack)
        return filepath