interface AsyncFastIterator implements AsyncIterator<T>Re-exportimport { type AsyncFastIterator } from "https://deno.land/x/rimbu@0.13.2/mod.ts"; Type ParametersTMethodsfastNext(): MaybePromise<T | undefined>fastNext<O>(otherwise: AsyncOptLazy<O>): MaybePromise<T | O>next(): Promise<IteratorResult<T>>fastNext(): MaybePromise<T | undefined>fastNext<O>(otherwise: AsyncOptLazy<O>): MaybePromise<T | O>next(): Promise<IteratorResult<T>>