import { BiMultiMapNonEmpty } from "https://deno.land/x/rimbu@0.13.1/bimultimap/custom/index.ts";
Module
x/rimbu/bimultimap/custom/index.ts>BiMultiMapNonEmpty#assumeNonEmpty
Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools.