def emb_f2
import bendtorch@1.3.0.0/main.bend as Bendtorchimport Base
import bend-ml-tensor-array@0.1.18.0/main.bend as TA
2011def emb_f2(-n: Nat, -v: Nat, -d: Nat, +ids: List<&2, Nat>, r: A2) -> Fwd<TA.Mat<v, d>, TA.Mat<n, d>, List<&2, Nat>>:
2012 match r:
2013 case A2{e, o}:
2014 Fwd{TA.Mat{e}, TA.Mat{o}, ids}