PhpCsFixer\Config::registerCustomFixers PHP Method

    public function registerCustomFixers($fixers)
    {
        if (false === is_array($fixers) && false === $fixers instanceof \Traversable) {
            throw new \InvalidArgumentException(sprintf('Argument must be an array or a Traversable, got "%s".', is_object($fixers) ? get_class($fixers) : gettype($fixers)));
        }
        foreach ($fixers as $fixer) {
            $this->addCustomFixer($fixer);
        }
        return $this;
    }