code: @Pure
  	public boolean contains(BusItineraryHalt bushalt) {
  		if (bushalt == null) {
  			return false;
  		}
  		if (bushalt.isValidPrimitive()) {
  			return ListUtil.contains(this.validHalts, VALID_HALT_COMPARATOR, bushalt);
  		}
  		return ListUtil.contains(this.invalidHalts, INVALID_HALT_COMPARATOR, bushalt);
  	}
docs: Replies if the given bus halt is inside this bus itinerary.
  
  @param bushalt is the bus halt to search for.
  @return <code>true</code> if the bus halt is inside the itinerary,
  otherwise <code>false</code>