fn cancel( userdata: ?*anyopaque, any_future: *Io.AnyFuture, result: []u8, result_alignment: std.mem.Alignment, ) void
fn cancel( userdata: ?*anyopaque, any_future: *Io.AnyFuture, result: []u8, result_alignment: std.mem.Alignment, ) void { const k: *Kqueue = @ptrCast(@alignCast(userdata)); _ = k; _ = any_future; _ = result; _ = result_alignment; @panic("TODO"); }