createFromReflector example

try {
            $reflectionClass = new \ReflectionClass($class);
        } catch (\ReflectionException) {
            return null;
        }
        $reflectionConstructor = $reflectionClass->getConstructor();
        if (!$reflectionConstructor) {
            return null;
        }

        try {
            $docBlock = $this->docBlockFactory->create($reflectionConstructor, $this->contextFactory->createFromReflector($reflectionConstructor));

            return $this->filterDocBlockParams($docBlock, $property);
        } catch (\InvalidArgumentException) {
            return null;
        }
    }

    private function filterDocBlockParams(DocBlock $docBlock, string $allowedParam): DocBlock
    {
        $tags = array_values(array_filter($docBlock->getTagsByName('param'), fn ($tag) => $tag instanceof DocBlock\Tags\Param && $allowedParam === $tag->getVariableName()));