def _next_tuple_partname(self, reltype):
        partname_tmpl = self.partname_tmpls[reltype]
        partnum = self._next_partnum(reltype)
        return partname_tmpl % partnum
dataset/ETHPy150Open python-openxml/python-docx/tests/opc/unitdata/rels.py/RelationshipsBuilder._next_tuple_partname/original