docs: public static Specification<JpaRollout> isDeletedWithDistributionSet(final Boolean isDeleted) {
          return (root, query, cb) -> {
  
              final Predicate predicate = cb.equal(root.<Boolean> get(JpaRollout_.deleted), isDeleted);
              root.fetch(JpaRollout_.distributionSet);
              return predicate;
          };
  
      }