name : WrappingType.php <?php declare(strict_types=1); namespace GraphQL\Type\Definition; interface WrappingType { /** Return the wrapped type, which may itself be a wrapping type. */ public function getWrappedType(): Type; /** * Return the innermost wrapped type, which is guaranteed to be a named type. * * @return Type&NamedType */ public function getInnermostType(): NamedType; }