Protocol Token Wrapper

Protocol Token Wrapper Transformer is one of the most basic implementations of a transformer, and as such is a great example to introduce ourselves into these concepts.

In the case of Protocol Token Wrapper transformer, the underlying token will be what it's known as a "protocol" native asset: ETH, MATIC, BNB, etc. while the dependent will be the wrapped version of these: WETH, WMATIC, WBNB, etc.

Being a one-to-one relationship with no slippage, queue, or any other modifications between the dependent and the underlying makes this a pretty straightforward and easy to understand transformer implementation.