Codeception\Module\Laravel5::seeInSession PHP Method

    public function seeInSession($key, $value = null)
    {
        if (is_array($key)) {
            $this->seeSessionHasValues($key);
            return;
        }
        if (is_null($value)) {
            $this->assertTrue($this->app['session']->has($key));
        } else {
            $this->assertEquals($value, $this->app['session']->get($key));
        }
    }