code: public RegisteredServiceDocument get(final long id) {
          try {
              return this.get(String.valueOf(id));
          } catch (final DocumentNotFoundException e) {
              LOGGER.debug("Service [{}] not found. [{}]", id, e.getMessage());
              return null;
          }
      }
docs: Overload wrapper for long type. Get service by ID.
  
  @param id Service ID
  @return service