import { SortedMapLeaf } from "https://deno.land/x/rimbu@0.13.1/sorted/map-custom/index.ts";
Parameters
left: SortedMapLeaf<K, V>
x/rimbu/sorted/map-custom/index.ts>SortedMapLeaf#mutateJoinLeft
import { SortedMapLeaf } from "https://deno.land/x/rimbu@0.13.1/sorted/map-custom/index.ts";