code: public function setTemplateName($name)
      {
          @trigger_error(sprintf('The "%s" method is deprecated since version 1.29 and will be removed in 2.0. Use setSourceContext() instead.', __METHOD__), E_USER_DEPRECATED);
  
          $this->filename = $name;
          $this->sourceCode = $this->sourcePath = null;
  
          $this->updateRepr();
      }
docs: Sets the logical name where the error occurred.
  
  @param string $name The name
  
  @deprecated since 1.29 (to be removed in 2.0). Use setSourceContext() instead.