import { type EventName } from "./events.js";
import type { TelemetryConfig } from "./config.js";
/**
 * The shipped default PostHog project (write-only, `phc_`) key. Safe to expose:
 * it can only capture events, never read data. Baked in so telemetry works for
 * users who install Vendo without any env setup. Override with
 * VENDO_POSTHOG_KEY to point at a different project.
 */
export declare const DEFAULT_POSTHOG_KEY = "phc_siVHW4wVh8yDeDzMgnjLGrYYqsHMceqfdqYF9fPEGXpS";
export interface TelemetryDeps {
    version: string;
    config: TelemetryConfig;
    env: Record<string, string | undefined>;
    /** Project directory for projectIdHash lookup; defaults to process.cwd(). */
    cwd?: string;
    runtime: boolean;
    posthogKey: string | undefined;
    fetchImpl?: typeof fetch;
}
export interface Telemetry {
    track(event: EventName, props: Record<string, unknown>): Promise<void>;
}
export declare function createTelemetry(deps: TelemetryDeps): Telemetry;