@lru_cache(maxsize=hgvs.global_config.lru_cache.maxsize)<EOL><INDENT>def _fetch_AlignmentMapper(self, tx_ac, alt_ac, alt_aln_method):<DEDENT>
return hgvs.alignmentmapper.AlignmentMapper(<EOL>self.hdp, tx_ac=tx_ac, alt_ac=alt_ac, alt_aln_method=alt_aln_method)<EOL>
Get a new AlignmentMapper for the given transcript accession (ac),
possibly caching the result.