How to use "infoArchive"?

[Tatuck]

Hello. I am trying to list the files inside a container. I tried doing it like so:

container.infoArchive({path:"/"}).then(function(err, stream){
    if(err) return console.log(err);
    stream.pipe(process.stdout);
});

But it returns an IncomingMessage object, how does this function work?
Thanks.