How to convert hash160 script to Script object?

I have a script and it looks like this: `76a914af7a4a30243f2301e6a14a4979ae099d52f560d488ac` How can I create an instance of class `Script` from it? It has to be parsed, I believe, but how?

Post to SO too: https://bitcoin.stackexchange.com/questions/85963/how-to-convert-script-hash-into-opcodes-in-ruby