code: public void invalidateLookupCacheEntries(Set<ChannelID> channelIDs) {
  		for (ChannelID id : channelIDs) {
  			this.receiverCache.remove(id);
  		}
  	}
docs: Invalidates the entries identified by the given channel IDs from the receiver lookup cache.
  
  @param channelIDs channel IDs for entries to invalidate