@Override
 public void findModelUsages(
     Collection<SModel> scope,
     Set<SModelReference> modelReferences,
     Consumer<SModel> consumer,
     Consumer<SModel> processedConsumer) {
   MultiMap<SModel, SModelReference> candidates =
       findCandidates(scope, modelReferences, processedConsumer, key -> new ModelUse(key));
   for (Entry<SModel, Collection<SModelReference>> candidate : candidates.entrySet()) {
     if (FindUsagesUtil.hasModelUsages(candidate.getKey(), candidate.getValue())) {
       consumer.consume(candidate.getKey());
     }
   }
 }
 @Override
 public void findInstances(
     Collection<SModel> scope,
     Set<SAbstractConcept> concepts,
     Consumer<SNode> consumer,
     Consumer<SModel> processedConsumer) {
   MultiMap<SModel, SAbstractConcept> candidates =
       findCandidates(
           scope,
           concepts,
           processedConsumer,
           key -> new ConceptInstance(MetaIdHelper.getConcept(key)));
   for (Entry<SModel, Collection<SAbstractConcept>> candidate : candidates.entrySet()) {
     FindUsagesUtil.collectInstances(candidate.getKey(), candidate.getValue(), consumer);
   }
 }