code: protected void newPackagePermissions(
              final ApplicationPermissionRule rule,
              final ApplicationPermissionMode mode,
              final String... featureFqns) {
  
          newPermissions(rule, mode, ApplicationFeatureType.PACKAGE, Arrays.asList(featureFqns));
      }
docs: For subclasses to call in {@link #execute(org.apache.isis.applib.fixturescripts.FixtureScript.ExecutionContext)}.