import { OrderedMapEmpty } from "https://deno.land/x/rimbu@1.0.0/ordered/map-custom/implementation/empty.ts";
Returns
WithKeyValue<Tp, K, V>["normal"]
x/rimbu/ordered/map-custom/implementation/empty.ts>OrderedMapEmpty#modifyAt
import { OrderedMapEmpty } from "https://deno.land/x/rimbu@1.0.0/ordered/map-custom/implementation/empty.ts";