[CCode (cheader_filename = "JavaScriptCore/JavaScriptCore.h", gir_namespace = "JSCore", gir_version = "3.0")]
namespace JSCore {
     [Compact, CCode (cname = "struct OpaqueJSValue")]
     public class ObjectRef {
     }

     [Compact, CCode (cname = "struct OpaqueJSContext")]
     public class GlobalContextRef {
     }
}