Handling proxy contracts with implementation abi missing proxy abi

There is a proxy contract (https://etherscan.io/address/0x34460c0eb5074c29a9f6fe13b8e7e23a0d08af01) with implementation (https://etherscan.io/address/0x934ef5836e78d93125317034f5cf855a97b13f43). I'd like to use proxy contract methods in a type-safe way (in this case `getTarget` and `getMaster`). I would like to also use implementation methods in the same way. At this point, eth-sdk fetches only implementation abi, so I had to add missing proxy methods on my own.

This could be achieved if `noFollowProxies` could be defined for every contract separately instead of once for the whole config - I could then define two contracts (one with proxy abi and the other one with implementation abi). The other solution would be to allow abi merging - not sure how this would work precisely though.

What is your take on this?