def taken_left
import bendvy-ecs-core@0.1.0.4/ordinary_app_focus.bend as OrdinaryAppFocusimport Base
7def taken_left(~Previous:Type,~Leaf:Type,~Right:Type,right:Right,result:Previous & Leaf) -> (Previous & Right) & Leaf:
8 match result:
9 case (previous,leaf):((previous,right),leaf)