/// <reference types="node" />
import { EventEmitter } from 'events';
import { ReactElement } from 'react';
interface Instance {
    output: string;
    unmount: () => void;
    cleanup: () => void;
    stdout: OutputStream;
    stderr: OutputStream;
    frames: string[];
}
export declare class OutputStream extends EventEmitter {
    readonly frames: string[];
    private _lastFrame?;
    write: (frame: string) => void;
    lastFrame: () => string | undefined;
}
export declare const render: (tree: ReactElement) => Instance;
export {};
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