/**
 * Collects cumulative measurements about a channel.
 */
export declare class ChannelMetrics {
    private bytesSentSum;
    private bytesReceivedSum;
    /**
     * Gets the total cumulative number of bytes sent for the duration of the channel,
     * not including message framing, padding, and MAC bytes.
     */
    get bytesSent(): number;
    /**
     * Gets the total cumulative number of bytes received for the duration of the channel,
     * not including message framing, padding, and MAC bytes.
     */
    get bytesReceived(): number;
    toString(): string;
}
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