def filter_halves
import unified-nsga-iii@0.2.2.0/util.bend as Utilimport Base
330def filter_halves(~A: Data, ~C: Data, ~p: @+c:C -> @+x:A -> Bool, +ctx: C, +xs: List<&2, A>) -> List<&2, A>:
331 filter_halves.go(~A, ~C, ~p, ctx, list_len(A, xs), xs)