type alias StrNum.Multimport { type StrNum } from "https://deno.land/x/rimbu@0.12.3/typical/mod.ts"; const { Mult } = StrNum; Type ParametersN1 extends stringN2 extends stringdefinition: N2 extends Str.Append<infer N2Start, Digit> ? N2Start extends "" ? MultDigit<N1, Digit & N2> : N2 extends Str.Append<N2Start, infer N2Last> ? Add<MultDigit<N1, Digit & N2Last>, Str.Append<Mult<N1, N2Start>, "0">> : never : never