classes/CLI.php
public static function help(callable $callback = null){
        $callback
          ? is_callable($callback) && static::$help = $callback
          : static::$help && call_user_func(static::$help);
    }
public static function help(callable $callback = null){
        $callback
          ? is_callable($callback) && static::$help = $callback
          : static::$help && call_user_func(static::$help);
    }
public static function help ( callable $ callback = null ) { $ callback ? is_callable ( $ callback ) && static :: $ help = $ callback : static :: $ help && call_user_func ( static :: $ help ) ; }
Bind a callback to the "help" route.
@param  callable $callback The callback to be binded to the route. If omitted triggers the callback.
Bind a callback to the help route .