import { AsyncStreamBase } from "https://deno.land/x/rimbu@1.1.0/stream/async-custom/index.ts";
Parameters
flatMapFun: () => AsyncStreamSource<T2>
value: T,
index: number,
halt: () => void,
x/rimbu/stream/async-custom/index.ts>AsyncStreamBase#flatMap
import { AsyncStreamBase } from "https://deno.land/x/rimbu@1.1.0/stream/async-custom/index.ts";