import { IReadable } from './types.js';
export declare class BufReader implements IReadable {
    #private;
    constructor(readable: IReadable, size?: number);
    /** the size of the buffer */
    get bufferSize(): number;
    /** the number of bytes that are currently buffered */
    get buffered(): number;
    read(into: Uint8Array): Promise<number>;
}