code: def prefixedname_to_iriref(self, prefix: ShExDocParser.PrefixedNameContext) -> ShExJ.IRIREF:
          
          return ShExJ.IRIREF(self.prefixedname_to_str(prefix))
docs: prefixedName: PNAME_LN | PNAME_NS
              PNAME_NS: PN_PREFIX? ':' ;
              PNAME_LN: PNAME_NS PN_LOCAL ;