filterDocBlockParams example

 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()));

        return new DocBlock($docBlock->getSummary(), $docBlock->getDescription(), $tags, $docBlock->getContext(),
            $docBlock->getLocation(), $docBlock->isTemplateStart(), $docBlock->isTemplateEnd());
    }

return null;
        }

        if (!$rawDocNode = $reflectionConstructor->getDocComment()) {
            return null;
        }

        $tokens = new TokenIterator($this->lexer->tokenize($rawDocNode));
        $phpDocNode = $this->phpDocParser->parse($tokens);
        $tokens->consumeTokenType(Lexer::TOKEN_END);

        return $this->filterDocBlockParams($phpDocNode, $property);
    }

    private function filterDocBlockParams(PhpDocNode $docNode, string $allowedParam): ?ParamTagValueNode
    {
        $tags = array_values(array_filter($docNode->getTagsByName('@param'), fn ($tagNode) => $tagNode instanceof PhpDocTagNode && ('$'.$allowedParam) === $tagNode->value->parameterName));

        if (!$tags) {
            return null;
        }

        return $tags[0]->value;
    }