code: public ArchiveList listArchives(String sessionId) throws OpenTokException {
          if (sessionId == null || sessionId.isEmpty() ) {
              throw new InvalidArgumentException("Session Id cannot be null or empty");
          }
          return listArchives(sessionId, 0, 1000);
      }
docs: Returns a List of {@link Archive} objects, representing archives that are both
  both completed and in-progress, for your API key.
  
  @param sessionId The sessionid of the session which started or automatically enabled archiving.
  If the session is null or empty it will be omitted.
  @return A List of {@link Archive} objects.