DtcgInterface

class \Drupal\Core\Theme\DesignToken\DesignToken implements \Drupal\Core\Theme\DesignToken\DtcgInterface extends \Drupal\Component\Plugin\Definition\PluginDefinition
class \Drupal\Core\Theme\DesignToken\Group implements \Drupal\Core\Theme\DesignToken\DtcgInterface

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