I am using monad-coroutine package and have something like Coroutine (Await Int) (State MyState) Int (simplified version, for example purpose).

MyState is deeply nested and I do a lot of modifications in it. Previously (with different data types) I was able to use zoom from lens in order to simplify the typing/view of code which operates on some subtree of the state, e.g.:

zoom (company.assets) $ do
  something.a    = someComputation
  anotherthing.b = False
  this.that      = "someString"

The problem I am having is that I cannot come up with instance Zoom for the Coroutine and was wondering if anyone is able to help me with that?

Best regards,

Konstantin