src/View/Helper/AuthHelper.php
public function loggedIn() {
		if ($this->_viewAuth) {
			return $this->sessionKey && $this->request->session()->check($this->sessionKey);
		}
		return false;
	}
public function loggedIn() {
		if ($this->_viewAuth) {
			return $this->sessionKey && $this->request->session()->check($this->sessionKey);
		}
		return false;
	}
whether the user is logged in

@return bool