'string', 'url' => 'string', ]; /** * @inheritdoc */ public static $_required = ['url']; /** * @inheritdoc */ public static $_parents = [ OpenApi::class, Tag::class, Schema::class, AdditionalProperties::class, Property::class, Operation::class, Get::class, Post::class, Put::class, Delete::class, Patch::class, Head::class, Options::class, Trace::class, Items::class, JsonContent::class, XmlContent::class, ]; }