def _make_refs(self, ref):
        """
        Return an (outer ref, value ref) pair.  By default, these are
        the same pointers, but a derived class may override this.
        """
        if ref is None:
            ref = alloca_once(self._builder, self._be_type, zfill=True)
        return ref, ref

        Return an (outer ref, value ref) pair.  By default, these are
        the same pointers, but a derived class may override this.
        
numba/core/cgutils.py