``` lua t = queue.create_tube('test', 'utubettl') tarantool> t:put('ttr1', { ttr = 1 }) --- - [0, 'r', 'ttr1'] ... tarantool> t:take(.1) --- - [0, 't', 'ttr1'] ... tarantool> -- wait 1 second --- ... tarantool> t:peek(0) --- - [0, 't', 'ttr1'] ... ```