Dart_StreamingCloseCallback typedef
Implementation
typedef Dart_StreamingCloseCallback = ffi.Pointer<ffi.NativeFunction<ffi.Void Function(ffi.Pointer<ffi.Void> callback_data)>>;
typedef Dart_StreamingCloseCallback = ffi.Pointer<ffi.NativeFunction<ffi.Void Function(ffi.Pointer<ffi.Void> callback_data)>>;