[brandur]

Great idea!

I can definitely see this as a workable solution. The only thought I have is that once in a while behavior like retry/idempotency support might have to be tweaked on a per-endpoint basis rather than from the general `call` method, and at that point things get a little less pretty.

In general I'd say that the ideas expressed in the article apply more to dynamic languages where you see much more of the convention of SDKs just giving you back hashes instead of strongly-typed models representing foreign resources. In something like Scala, the barrier of having to implement every model yourself might be an extra motivator for just defaulting to the SDK.