pub unsafe extern "C" fn Dart_InvokeClosure(
closure: Dart_Handle,
number_of_arguments: c_int,
arguments: *mut Dart_Handle,
) -> Dart_Handlepub unsafe extern "C" fn Dart_InvokeClosure(
closure: Dart_Handle,
number_of_arguments: c_int,
arguments: *mut Dart_Handle,
) -> Dart_Handle