ENH: Supporting third-party engines for all map and apply methods (original) (raw)

In #54666 and #61032 we introduce the engine parameter to DataFrame.apply which allows users to run the operation with a third-party engine.

The rest of apply and map methods can also benefit from this.

In a first phase we can do:

• Series.map
• Series.apply
• DataFrame.map

Then we can continue with the transform and group by ones.