fn netSocketCreatePairUnavailable( userdata: ?*anyopaque, options: net.Socket.CreatePairOptions, ) net.Socket.CreatePairError![2]net.Socket
fn netSocketCreatePairUnavailable( userdata: ?*anyopaque, options: net.Socket.CreatePairOptions, ) net.Socket.CreatePairError![2]net.Socket { _ = userdata; _ = options; return error.OperationUnsupported; }