import type { AssistantStreamChunk } from "../../AssistantStreamChunk.js";
export declare const createMergeStream: () => {
    readable: ReadableStream<AssistantStreamChunk>;
    isSealed(): boolean;
    seal(): void;
    addStream(stream: ReadableStream<AssistantStreamChunk>): void;
    enqueue(chunk: AssistantStreamChunk): void;
};
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