import { SortedSetEmpty } from "https://deno.land/x/rimbu@1.0.0/sorted/set-custom/index.ts";
Parameters
other: StreamSource<T>
x/rimbu/sorted/set-custom/index.ts>SortedSetEmpty#union
import { SortedSetEmpty } from "https://deno.land/x/rimbu@1.0.0/sorted/set-custom/index.ts";