import type { TrackLevel, EventProperties } from "../types";
import type { Config } from "../core/config";
export type TrackCallback = (event: string, properties: EventProperties) => void;
export declare abstract class BaseTracker {
    protected config: Config;
    protected trackCallback: TrackCallback;
    protected isActive: boolean;
    protected level: TrackLevel;
    constructor(config: Config, trackCallback: TrackCallback, level: TrackLevel);
    start(): void;
    stop(): void;
    protected track(event: string, properties?: EventProperties): void;
    protected abstract setup(): void;
    protected abstract teardown(): void;
    protected log(...args: unknown[]): void;
}
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