import { BaseEvent } from './base-event.js';
/**
 * Marker base class for anonymous product-telemetry events.
 *
 * Only subclasses of TelemetryEvent are accepted by PostHogTransport. This is a
 * defense-in-depth boundary: PII-bearing domain events (which extend BaseEvent directly)
 * can never be sent to PostHog, even if the transport is wired into a shared bus.
 *
 * Subclasses MUST expose `name` via a getter (not an instance field): BaseEvent's
 * constructor freezes the instance, so a field initializer would fail.
 */
export declare abstract class TelemetryEvent<TPayload extends object = Record<string, unknown>> extends BaseEvent<TPayload> {
}
/** Type guard: true only for TelemetryEvent instances. */
export declare function isTelemetryEvent(event: unknown): event is TelemetryEvent;
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