code: public XSS json(final JsonEscapeType type, final JsonEscapeLevel level) {
      this.jsonlevel = requireNonNull(level, "Level required.");
      this.jsontype = requireNonNull(type, "Type required.");
      return this;
    }
docs: Set JSON escape type and level.
  
  @param type Type.
  @param level Level.
  @return This module.