docs: def tripleexprlabel_to_iriref(self, tripleExprLabel: ShExDocParser.TripleExprLabelContext) \
              -> Union[ShExJ.BNODE, ShExJ.IRIREF]:
          """ tripleExprLabel: iri | blankNode """
          if tripleExprLabel.iri():
              return self.iri_to_iriref(tripleExprLabel.iri())
          else:
              return ShExJ.BNODE(tripleExprLabel.blankNode().getText())