docs: public final String skipToKey(Set<String> keysToFind) throws IOException {
      JsonToken curToken = startParsingObjectOrArray();
      while (curToken == JsonToken.FIELD_NAME) {
        String key = getText();
        nextToken();
        if (keysToFind.contains(key)) {
          return key;
        }
        skipChildren();
        curToken = nextToken();
      }
      return null;
    }