code: @Override
      public JavaShellToolBuilder out(PrintStream output) {
          this.cmdOut = output;
          this.console = output;
          this.userOut = output;
          return this;
      }
docs: Set the output channels. Same as {@code out(output, output, output)}.
  Default, if not set, {@code out(System.out)}.
  
  @param output destination of command feedback, console interaction, and
  user code output
  @return the {@code JavaShellToolBuilder} instance