Function gio_sys::g_file_measure_disk_usage_finish

pub unsafe extern "C" fn g_file_measure_disk_usage_finish(
    file: *mut GFile,
    result: *mut GAsyncResult,
    disk_usage: *mut u64,
    num_dirs: *mut u64,
    num_files: *mut u64,
    error: *mut *mut GError
) -> gboolean