pub unsafe extern "C" fn g_file_append_to_finish(
file: *mut GFile,
res: *mut GAsyncResult,
error: *mut *mut GError,
) -> *mut GFileOutputStream
pub unsafe extern "C" fn g_file_append_to_finish(
file: *mut GFile,
res: *mut GAsyncResult,
error: *mut *mut GError,
) -> *mut GFileOutputStream