export type RemoteRuntimePerformanceService = {
    /**
     * Returns a traceparent header for a method call.
     * More info on https://www.w3.org/TR/trace-context.
     *
     * Can return undefined if no tracing context is present/required for the operation
     *
     * @param method name of the method, e.g. 'RenderPostContent'
     */
    getTraceparent(method: string): string | undefined;
};
export declare class PerformanceTracker {
    #private;
    constructor();
    /** Start timestamp of the measured operation. Uses fractional milliseconds */
    get timeStart(): DOMHighResTimeStamp;
    /**
     * End timestamp of the measured operation. Uses fractional milliseconds.
     *
     * Undefined if tracker has not been finished.
     */
    get timeEnd(): number | undefined;
    finish(): void;
}
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