Multi burst|rps per different keys

Hello, I was investigating the crate and I could not figure it out a way of handling different rps and burst size to work along different keys:

For example:
`burst:10|rps:10 per (GET, /url1)`
`burst:5|rps:20 per (POST, /url2)`

Can this be implemented in the crate? I can help if it's required