OPENQASM 3.1;
// Durations carried, and labelled as not applied by the method.
qubit[2] q;
stretch s;
duration d = 100ns;
h q[0];
delay[2 * d] q[0];
box [1us] {
  cx q[0], q[1];
}
delay[s] q[1];
barrier q;
x[20ns] q[1];