Thanks for the awesome library!

I have a feature request. I would like to be able to use uniswap python without using my private keys. In other words, it would be great if you could expose an API that creates the uniswap transactions but doesn't sign them / deploy them. This would allow me to use python uniswap with external signing applications like Fireblocks, that allow me to set custom rules to make sure that your crypto is not sent to addresses that don't belong to me.