src/Environaut/Config/Config.php
public function getRunnerImplementor()
    {
        $runner = new Parameters($this->config->get('runner', array()));
        return $runner->get(self::PARAM_CLASS, 'Environaut\Runner\Runner');
    }
public function getRunnerImplementor()
    {
        $runner = new Parameters($this->config->get('runner', array()));
        return $runner->get(self::PARAM_CLASS, 'Environaut\Runner\Runner');
    }
Defaults to "Environaut\Runner\Runner".

@return string (namespaced) class name to use for running checks read from the config