code: public function output()
  	{
  		@trigger_error('Using Template::output() has been deprecated and will no longer work in Contao 5.0. Use Template::getResponse() instead.', E_USER_DEPRECATED);
  
  		$this->compile();
  
  		header('Content-Type: ' . $this->strContentType . '; charset=' . Config::get('characterSet'));
  
  		echo $this->strBuffer;
  
  		// Flush the output buffers (see #6962)
  		$this->flushAllData();
  	}
docs: Parse the template file and print it to the screen
  
  @deprecated Deprecated since Contao 4.0, to be removed in Contao 5.0.
  Use Template::getResponse() instead.