AWS Lambda解压缩gzip文件，无需将文件保存在本地

I'm trying to get a file from a S3 bucket (.gzip) and unzip it to another bucket. I couldn't find a way to do it without saving the file on local (my PC). Is there a way to 'save' the file on Lambda and unzip it directly on S3? Thank you!I'm trying to get a file from a S3 bucket (.gzi