code: public function tf(string $key, array $args = null, array $replacements = null, string ...$namespaces) {
  		$this->view->out($this->getTf($key, $args, $replacements, ...$namespaces));
  	}
docs: Use for easy access to a textblock formatted by printf rules.
  
  &lt;p&gt;
  &lt;?php $textHtml-&gt;tf('intro_text') ?&gt;
  &lt;/p&gt;
  
  @param string $key
  @param string[] $args
  @param string[] $replacements
  @param string ...$namespaces