/*!--------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See LICENSE in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
export interface TelemetryEvent {
    /**
     * The event name.
     */
    eventName: string;
    /**
     * Properties of the event. Successful events will be aggregated, and each property from each event attached to the ultimate aggregated event.
     * It is recommended in most cases to sort array properties, in order for them to be functionally treated as sets rather than arrays.
     */
    properties: TelemetryProperties;
    /**
     * Duration measurements for the event
     */
    measurements: TelemetryMeasurements & AggregateTelemetryMeasurements;
    /**
     * How the events will be grouped, either by name only, or name + JSON.stringify(properties)
     */
    groupingStrategy: 'eventName' | 'eventNameAndProperties';
    /**
     * If true, the event will not be sent if it is successful.
     */
    suppressIfSuccessful?: boolean;
    /**
     * If true, the event will not be sent.
     */
    suppressAll?: boolean;
}
interface TelemetryProperties {
    isActivationEvent: 'true' | 'false';
    result: 'Succeeded' | 'Failed' | 'Canceled';
    error?: string;
    errorMessage?: string;
    stack?: string;
    [key: string]: string | undefined;
}
interface TelemetryMeasurements {
    duration?: number;
}
interface AggregateTelemetryMeasurements {
    count?: number;
    durationMu?: number;
    durationSigma?: number;
    durationMedian?: number;
}
export declare function initEvent(eventName: string): TelemetryEvent;
export {};