/**
 * `vt.gtag(...)` escape hatch.
 *
 * Power users may need to call `gtag` directly (e.g. to fire a custom
 * conversion from a third-party widget or to set a debug param). We expose
 * a flat passthrough that:
 *
 * - queues calls made before the SDK has booted (keeps them in FIFO order),
 * - queues calls made before `gtag.js` has loaded (forwarded via the
 *   `dataLayer` shim, which naturally buffers until the real script runs),
 * - records every call so tests + the delivery log can see them.
 */
import type { GtagFn } from "./consent-bridge";
export type GtagCall = unknown[];
export interface PublicGtagApi {
    /** The flat function exposed as `vt.gtag(...)` */
    call: GtagFn;
    /** Flush queued calls to a now-ready gtag implementation. */
    flush(target: GtagFn): void;
    /** Observability: recent calls sent through this API (ring buffer). */
    getRecentCalls(): GtagCall[];
}
export declare function createPublicGtagApi(): PublicGtagApi;