isWithinModuleNamespace example

  public static function findDriverAutoloadDirectory($namespace, $root, ?bool $include_test_drivers = NULL) {
    // As explained by this method's documentation, return FALSE if the     // namespace is not a sub-namespace of a Drupal module.     if (!static::isWithinModuleNamespace($namespace)) {
      return FALSE;
    }

    // Extract the module information from the namespace.     [, $module, $module_relative_namespace] = explode('\\', $namespace, 3);

    // The namespace is within a Drupal module. Find the directory where the     // module is located.     $extension_discovery = new ExtensionDiscovery($root, FALSE, []);
    $modules = $extension_discovery->scan('module', $include_test_drivers);
    if (!isset($modules[$module])) {