code: public static List<Bean> findLazy(Set<BeanId> ids) {
          if (ids.size() == 0) {
              return new ArrayList<>();
          }
          JpaBeanQueryAssembler query = new JpaBeanQueryAssembler(ids);
          List<JpaProperty> allProperties = JpaProperty.findProperties(query.getIds());
          query.addProperties(allProperties);
          Multimap<BeanId, JpaRef> refs = JpaRef.findReferences(ids);
          if (refs.size() > 0) {
              query.addRefs(refs);
          }
          return query.assembleBeans();
      }
docs: Finds the provided beans and initalize their properties and direct
  references (but no further).