import { type AgentResponseChunk, type AgentResponseProgress, type AgentResponseStream, type Message } from "../agents/agent.js";
import type { Context } from "../aigne/context.js";
export declare class EventStreamParser<T> extends TransformStream<string, T | Error> {
    constructor();
}
export declare class AgentResponseStreamParser<O extends Message> extends TransformStream<AgentResponseChunk<O> | Error, AgentResponseChunk<O>> {
    private json;
    constructor();
}
export declare class AgentResponseStreamSSE<O extends Message> extends ReadableStream<string> {
    constructor(stream: AgentResponseStream<O>);
}
export declare class AgentResponseProgressStream extends ReadableStream<AgentResponseProgress> {
    constructor(context: Context);
}