/**
 * Delivery-render flag: the host rides `deliveryRender: true` on its
 * `lightdash:sdk:ready` message during delivery/preview capture renders
 * (absent on interactive loads). Apps gate all-tab data mounting on it.
 */
export type DeliveryRenderStore = {
    getValue: () => boolean;
    setValue: (next: boolean) => void;
    subscribe: (listener: () => void) => () => void;
};
/**
 * Minimal external store: synchronous reads for useSyncExternalStore.
 * Exported for tests — app code uses `useDeliveryRender`.
 */
export declare function createDeliveryRenderStore(): DeliveryRenderStore;
/**
 * Listen for the flag riding on the host's `lightdash:sdk:ready`. Called by
 * `createPostMessageTransport()`; a no-op outside the browser (SSR/tests that
 * never create a postMessage transport keep the default `false`). One
 * listener per bundle — re-mounting replaces the previous listener rather
 * than stacking.
 */
export declare function mountDeliveryRender(targetWindow: Window): () => void;
/**
 * True inside delivery/preview capture renders. Gate DATA fetching on this —
 * mount every tab's/slide's data hooks and show only the active one — never
 * mount all tabs unconditionally on interactive loads.
 *
 *   const deliveryRender = useDeliveryRender();
 *   return (deliveryRender || activeTab === 'summary') && <SummaryTabData />;
 */
export declare function useDeliveryRender(): boolean;
/**
 * Non-hook accessor for event handlers and other post-boot code. Do NOT call
 * at module init: the flag arrives from the host after the iframe loads, so
 * a read before then always returns false. Components should use the hook,
 * which re-renders when the flag arrives.
 */
export declare function isDeliveryRender(): boolean;
/**
 * Test-only seam: drops the listener and the shared store so the next mount
 * re-reads the default `false`.
 */
export declare function resetDeliveryRenderState(): void;