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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 path_for_doc(self, doc_id):
 """Returns doc_dir and doc_filepath for doc_id. """

        full_path = self.path_for_doc_fn(self.repo, doc_id)
        # _LOG.debug('>>>>>>>>>> GitActionBase.path_for_doc_fn: {}'.format(self.path_for_doc_fn))
        # _LOG.debug('>>>>>>>>>> GitActionBase.path_for_doc returning: [{}]'.format(full_path))
        return full_path