import { SortedSetInner } from "https://deno.land/x/rimbu@1.0.3/sorted/set-custom/implementation/immutable.ts";
Parameters
left: SortedSetInner<T>
x/rimbu/sorted/set-custom/implementation/immutable.ts>SortedSetInner#mutateJoinLeft
import { SortedSetInner } from "https://deno.land/x/rimbu@1.0.3/sorted/set-custom/implementation/immutable.ts";