/**
     * @template TValue
     * @param TValue $value
     * @return \Symfony\Config\Framework\Messenger\RoutingConfig|$this
     * @psalm-return (TValue is array ? \Symfony\Config\Framework\Messenger\RoutingConfig : static)
     */
    public function routing(string $message_class, array $value = []): \Symfony\Config\Framework\Messenger\RoutingConfig|static
    {
        if (!\is_array($value)) {
            $this->_usedProperties['routing'] = true;
            $this->routing[$message_class] = $value;

            return $this;
        }

        if (!isset($this->routing[$message_class]) || !$this->routing[$message_class] instanceof \Symfony\Config\Framework\Messenger\RoutingConfig) {
            $this->_usedProperties['routing'] = true;
            $this->routing[$message_class] = new \Symfony\Config\Framework\Messenger\RoutingConfig($value);
        } elseif (1 < \func_num_args()) {
            throw new InvalidConfigurationException('The node created by "routing()" has already been initialized. You cannot pass values the second time you call routing().');
        }

        return $this->routing[$message_class];
    }