Return newly added CT_HdrFtrRef element of *type_* with *rId*.

        The element tag is `w:headerReference`.

def add_headerReference(self, type_, rId):
        """Return newly added CT_HdrFtrRef element of *type_* with *rId*.

        The element tag is `w:headerReference`.
        """
        headerReference = self._add_headerReference()
        headerReference.type_ = type_
        headerReference.rId = rId
        return headerReference