import type { Reader, Writer } from "../stream";
import { Version } from "./version";
export declare class Probe {
    #private;
    bitrate: number;
    rtt?: number;
    constructor(bitrate: number, rtt?: number);
    encode(w: Writer, version: Version): Promise<void>;
    static decode(r: Reader, version: Version): Promise<Probe>;
    static decodeMaybe(r: Reader, version: Version): Promise<Probe | undefined>;
}
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