Trait defining extraction from a given HList
This trait is part of the implementation of the inherent method
HCons::pluck. Please see that method for more information.
You only need to import this trait when working with generic
HLists of unknown type. If you have an HList of known type,
list.pluck() should “just work” even without the trait.
What is left after you pluck the target from the Self
Remove an element by type from an HList.
Please see the inherent method for more information.
The only difference between that inherent method and this trait method is the location of the type parameters. (here, they are on the trait rather than the method)
Implementation when the pluck target is in the tail
Implementation when the pluck target is in head