Plugin/Config/StructurePlugin.php
public function aroundGetElementByPathParts(\Closure $proceed, array $pathParts)
    {
        /** @var Section $result */
        $result = $proceed($pathParts);

        if ($this->isLoaded == true || false) {
            return $result;
        }

        if (($result instanceof Section) == false) {
            return $result;
        }

        if (isset($pathParts[0]) == false || $pathParts[0] != 'system') {
            return $result;
        }

        $this->isLoaded = true;
        $data = $result->getData();

        if (isset($data['children']['full_page_cache']['children']['fastly_edge_modules']['children']) == false) {
            return $result;
        }

        $original = $data['children']['full_page_cache']['children']['fastly_edge_modules']['children'];
        $data['children']['full_page_cache']['children']['fastly_edge_modules']['children'] = array_merge(
            $original,
            $this->loadModlyData()
        );

        $result->setData(
            $data,
            $this->scopeDefiner->getScope()
        );

        return $result;
    }
public function aroundGetElementByPathParts(\Closure $proceed, array $pathParts)
    {
        /** @var Section $result */
        $result = $proceed($pathParts);

        if ($this->isLoaded == true || false) {
            return $result;
        }

        if (($result instanceof Section) == false) {
            return $result;
        }

        if (isset($pathParts[0]) == false || $pathParts[0] != 'system') {
            return $result;
        }

        $this->isLoaded = true;
        $data = $result->getData();

        if (isset($data['children']['full_page_cache']['children']['fastly_edge_modules']['children']) == false) {
            return $result;
        }

        $original = $data['children']['full_page_cache']['children']['fastly_edge_modules']['children'];
        $data['children']['full_page_cache']['children']['fastly_edge_modules']['children'] = array_merge(
            $original,
            $this->loadModlyData()
        );

        $result->setData(
            $data,
            $this->scopeDefiner->getScope()
        );

        return $result;
    }
Injects modlyies to configuration

@param \Closure $proceed
@param array $pathParts
@return ElementInterface|null

@SuppressWarnings(PHPMD.UnusedFormalParameter)