code: public function run() {
  
  		if ( ! $this->is_debug() || ! $this->is_debug_display() ) {
  			return;
  		}
  
  		/** @var Run $run */
  		$run = $this['run'];
  		$run->register();
  		ob_start(); // Or we are going to be spitting out WP markup before whoops.
  	}
docs: Execute run conditionally on debug configuration.