/**
   * The runner doesn't hold references to its queues! Otherwise we'd need a mechanism to clean them
   * up when they're no longer needed and that's annoying. Instead the task runner only tracks which
   * queues have work scheduled.
   */
  @Test fun activeQueuesContainsOnlyQueuesWithScheduledTasks() {
    redQueue.execute("task one", 100.µs) {
      // Do nothing.
    }

    blueQueue.execute("task two", 200.µs) {

perspecta.cloud

// PE Ulyanov Kirill Sergeevich : https://airy.host
// Submitted by Kirill Ulyanov <******@****.***>
lk3.ru

// Planet-Work : https://www.planet-work.com/
// Submitted by Frédéric VANNIÈRE <f.vanniere@planet-work.com>
on-web.fr

// Platform.sh : https://platform.sh
// Submitted by Nikola Kotur <******@****.***>
bc.platform.sh
ent.platform.sh
eu.platform.sh

dyn.ddnss.de dyn.home-webserver.de dyn53.io dynalias.com dynalias.net dynalias.org dynamic-dns.info dynamisches-dns.de dynathome.net dyndns-at-home.com dyndns-at-work.com dyndns-blog.com dyndns-free.com dyndns-home.com dyndns-ip.com dyndns-mail.com dyndns-office.com dyndns-pics.com dyndns-remote.com dyndns-server.com dyndns-web.com dyndns-wiki.com dyndns-work.com dyndns.biz dyndns.dappnode.io dyndns.ddnss.de dyndns.info dyndns.org dyndns.tv dyndns.ws dyndns1.de dynns.com dynserv.org dynu.net dynv6.net dynvpn.de...

            }
          }
        });
      }
    ```

### Accessing Headers ([.kt][AccessHeadersKotlin], [.java][AccessHeadersJava])