code: public JsniCodeBlockBuilder add( String format, Object... args ) {
          builder.add( format, args );
          return this;
      }
docs: <p>add</p>
  
  @param format a {@link java.lang.String} object.
  @param args a {@link java.lang.Object} object.
  @return a {@link com.github.nmorel.gwtjackson.rebind.writer.JsniCodeBlockBuilder} object.