import { Batch, Event, Error, TechSpecs } from './protobuf/metrics';
export type EventLogPlaybackEvent = Event;
export type EventLogErrorEvent = Error;
export type EventLogEntry = {
    readonly type: 'playback';
    readonly data: EventLogPlaybackEvent;
} | {
    readonly type: 'error';
    readonly data: EventLogErrorEvent;
};
export interface EventLogFlushOptions extends Pick<Batch, 'session' | 'media'>, Pick<TechSpecs, 'timestamp'> {
    readonly url: string;
}
export declare class MetricQueue {
    queue: Set<EventLogEntry>;
    add: (event: EventLogEntry) => void;
    flush: ({ url, session, media, timestamp }: EventLogFlushOptions) => void;
}
//# sourceMappingURL=metric-queue.d.ts.map