import { Stream } from "@effect/core/stream/Stream/definition";
import { Maybe } from "@tsplus/stdlib/data/Maybe/definition";
import { Channel } from "@effect/core/stream/Channel/definition/base";
import { Chunk } from "@tsplus/stdlib/collections/Chunk/definition";
import { Either } from "@tsplus/stdlib/data/Either/definition";
export declare function flatMapStream<R, E, A, R2, A2>(stream: Stream<R, never, Maybe<A>>, f: (a: A) => Stream<R2, never, Maybe<A2>>): Stream<R | R2, never, Maybe<A2>>;
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