code: def import_identities(self, parser, matching=None, match_new=False,
                            no_strict_matching=False,
                            reset=False, verbose=False):
          matcher = None
          if matching:
              strict = not no_strict_matching
              try:
                  blacklist = api.blacklist(self.db)
                  matcher = create_identity_matcher(matching, blacklist, strict=strict)
              except MatcherNotSupportedError as e:
                  self.error(str(e))
                  return e.code
          uidentities = parser.identities
          try:
              self.__load_unique_identities(uidentities, matcher, match_new,
                                            reset, verbose)
          except LoadError as e:
              self.error(str(e))
              return e.code
          return CMD_SUCCESS