def mask_l
import bend-ml-tensor-array@0.1.19.0/main.bend as BendMlTensorArrayimport Base
290def mask_l(nleft: Nat, +t: U32, rd: Array<F32> & F32, rh: Array<F32> & F32) -> P2:
291 match nleft rd rh:
292 case 0n Tuple{d, x} Tuple{h, y}:
293 P2{d, h}
294 case 1n+p Tuple{d, +x} Tuple{h, +y}:
295 mask_l(p, (t + 1 : U32), Array.get(F32, Array.set(F32, d, t, (x * pos(y) : F32)), (t + 1 : U32)), Array.get(F32, h, (t + 1 : U32)))