Interface for qBeta module object

Origin: Containers

OrderedList: obj
   %visible QBETA,StringLib
   OrderedList: Container
      has::<
      isEmpty:
         out B: var Boolean
      card:
         out N: var integer
      clear:
      insert::
      scan::
         nxt: ref Link:next
      link:next:
      head: ref link:next
      tail: ref Link:next
   test:
      L: obj OrderedList
      Record:
         print:
      R: obj Record