Wrapper scheme

The protocol uses this voting scheme for tokens that the Owner should deposit to a dedicated voting contract to get voting rights (e.g., MKR) or additional income (e.g., AAVE, SUSHI).
In protocols such as MakerDao (MKR), Yearn Finance (YFI), the token holder must send them to a special smart contract for voting rights and, in some cases, rewards.
In protocols such as AAVE and Sushi, the owner of tokens must not send them to a special contract to obtain voting rights but can do this to receive additional rewards.
In both cases, we use a "wrapper scheme."