code: def update_oai_info(self):
          
          for field in record_get_field_instances(self.record, '909', ind1="C", ind2="O"):
              new_subs = []
              for tag, value in field[0]:
                  if tag == "o":
                      new_subs.append(("a", value))
                  else:
                      new_subs.append((tag, value))
                  if value in ["CERN", "CDS", "ForCDS"]:
                      self.tag_as_cern = True
              record_add_field(self.record, '024', ind1="8", subfields=new_subs)
          record_delete_fields(self.record, '909')
docs: Add the 909 OAI info to 035.