traverseproc typedef Null safety
Implementation
typedef traverseproc = ffi.Int32 Function(
ffi.Pointer<PyObject>,
ffi.Pointer<ffi.NativeFunction<visitproc>>,
ffi.Pointer<ffi.Void>,
);
typedef traverseproc = ffi.Int32 Function(
ffi.Pointer<PyObject>,
ffi.Pointer<ffi.NativeFunction<visitproc>>,
ffi.Pointer<ffi.Void>,
);