code: @Override
      protected boolean shouldSignTokenFor(final OidcRegisteredService svc) {
          if (AlgorithmIdentifiers.NONE.equalsIgnoreCase(svc.getIdTokenSigningAlg())) {
              LOGGER.warn("ID token signing algorithm is set to none for [{}] and ID token will not be signed", svc.getServiceId());
              return false;
          }
          return svc.isSignIdToken();
      }
docs: Should sign token for service?
  
  @param svc the svc
  @return the boolean