Parameters example

/** @var \DOMElement $actions */
        $actions = $this->document->getElementsByTagName('flow-actions')->item(0);
        /** @var \DOMElement $action */
        $action = $actions->getElementsByTagName('flow-action')->item(0);
        /** @var \DOMElement $meta */
        $meta = $action->getElementsByTagName('meta')->item(0);

        $meta = Metadata::fromXml($meta);

        $parameter = new Parameter(['id' => 'key']);
        $this->parameters = new Parameters([$parameter]);
        $this->headers = new Headers([$parameter]);
        $inputFiled = new InputField(['id' => 'key']);
        $this->config = new Config([$inputFiled]);

        $this->action = new Action([
            'meta' => $meta,
            'headers' => $this->headers,
            'parameters' => $this->parameters,
            'config' => $this->config,
        ]);
    }