def BD
import bend-ml-tensor-array@0.1.19.0/main.bend as BendMlTensorArrayimport Base
539# a type chosen by a Bool: rewriting through it refutes True == False
540def BD(b: Bool, t: Type, f: Type) -> Type:
541 match b:
542 case True{}:
543 t
544 case False{}:
545 f