endpoint ClipboardServer = 802
{
    Greet() => (i32 client_id)

    GetClipboardData() => (i32 shbuf_id, i32 data_size, [UTF8] String mime_type, IPC::Dictionary metadata)
    SetClipboardData(i32 shbuf_id, i32 data_size, [UTF8] String mime_type, IPC::Dictionary metadata) => ()
}