public Map<Integer, String> status() {
    return Optional.ofNullable(status).orElse(ImmutableMap.of());
  }
public Map<Integer, String> status() {
    return Optional.ofNullable(status).orElse(ImmutableMap.of());
  }
public Map < Integer , String > status ( ) { return Optional . ofNullable ( status ) . orElse ( ImmutableMap . of ( ) ) ; }
Get status codes.

@return Status codes.
Get status codes .