code: public function set($strKey, $varValue)
  	{
  		// Map the referer (see #281)
  		if (\in_array($strKey, $this->mappedKeys))
  		{
  			$this->session->set($strKey, $varValue);
  		}
  		else
  		{
  			$this->sessionBag->set($strKey, $varValue);
  		}
  	}
docs: Set a session variable
  
  @param string $strKey   The variable name
  @param mixed  $varValue The variable value