How to get a `Map` instance from Guava Funnel? about magnolify

[LeifW]

I'm used to "codec"s for thing in the stdlib (like tuples) already being included in a library like this out of the box - without having to "derive" them. E.g. circe generates codecs for Tuples 1-22 here: https://github.com/circe/circe/blob/series/0.14.x/project/Boilerplate.scala#L157
Saves time over doing that at compile time for library users, also.
Would you accept a PR for adding instances for tuples like that - perhaps using sbt-boilerplate?

[RustedBones]

Ok I get it now. We handle tuple like other generic products instead of providing a default implicit.

If we add those, we should do the same in all magnolify modules. So far most of other modules are not affected by this because there is no semiauto/auto separation. IMHO we should do this split AND provide tuple implicits for the semiauto package.

I think it is worth a discussion and gathering other opinion before you get started :) cc: @spotify/flatmap

[RustedBones]

Hi @LeifW, sorry for the late answer.

implicitly[Funnel[(String, String)]]

won't work with semiauto. You should either use auto to retrieve the funnel implicitly or create it explicitly with

FunnelDerivation[(String, String)]

Concerning the implicit conflict for List[(String, String)], we indeed have a problem with implicit priorities. Will create a patch