Call operator for objc.ObjCBlock<ffi.Void Function(ffi.Pointer<ffi.Void>, objc.NSURL)>.
objc.ObjCBlock<ffi.Void Function(ffi.Pointer<ffi.Void>, objc.NSURL)>
Available on ObjCBlock<Void Function(Pointer<Void>, NSURL)>, provided by the ObjCBlock_ffiVoid_ffiVoid_NSURL$1_CallExtension extension