pub unsafe extern "C" fn g_output_stream_flush(
stream: *mut GOutputStream,
cancellable: *mut GCancellable,
error: *mut *mut GError,
) -> gboolean
pub unsafe extern "C" fn g_output_stream_flush(
stream: *mut GOutputStream,
cancellable: *mut GCancellable,
error: *mut *mut GError,
) -> gboolean