Add EitherT and IorT constructors from Option with monad left value #3457
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This is to follow-up on feedback for #3426
@kailuowang I'm trying to understand the idea in your feedback comment
Do you mean that we can add something like
?
There could be partially applied helper objects to simplify type-hints - so we only have to provide
G[_]
manually and E could be inferred from argumentDid I get the idea right? Thanks