code: function renderChoice( pointer ) {
    var output = "";
  
    this.choices.forEach(function( choice, i ) {
      output += "\n  ";
  
      if ( choice.type === "separator" ) {
        output += " " + choice;
        return;
      }
  
      var choiceStr = choice.key + ") " + choice.name;
      if ( pointer === choice.key ) {
        choiceStr = chalk.cyan( choiceStr );
      }
      output += choiceStr;
    }.bind(this));
  
    return output;
  }
docs: Function for rendering checkbox choices
  @param  {String} pointer Selected key
  @return {String}         Rendered content