code: def qname(self, iri: str) -> str:
          
          prefix, namespace, name = self.g.compute_qname(uri)
          qname = prefix + ':' + name
          self.rqname[qname] = iri
          return qname
docs: Get qualified name of uri in rdflib graph while also saving it
  
          Args: iri: The iri that you want to replace the uri with a known prefix with
  
          Returns: qualified name of the iri to be used as the new predicate