code: protected void newMemberPermissions(
              final ApplicationPermissionRule rule,
              final ApplicationPermissionMode mode,
              final Class cls,
              final String... members) {
          newPermissions(rule, mode, ApplicationFeatureType.MEMBER, asFeatureFqns(cls, members));
      }
docs: For subclasses to call in {@link #execute(org.apache.isis.applib.fixturescripts.FixtureScript.ExecutionContext)}.