/**
 * DOM hydration for content-id embeds.
 *
 * Given a fetched delivery config, inject the equivalent `<source>`,
 * `<vz-annotation>` and `<track>` children into the host element BEFORE the
 * media element's synchronous `onConnected()` runs, so the existing DOM-driven
 * init (loadSources/initAnnotations/initCaptions) discovers them with no
 * special-casing. A minimal `<vz-video content-id api-key>` thus renders the
 * authored sources + overlays.
 */
import type { DeliveryContentConfig } from '@vizor-vr/shared';
/**
 * Inject a fetched delivery config's sources + annotations + captions into the
 * host element as DOM children. Idempotency/precedence is the caller's job
 * (only hydrate when the author provided no DOM of their own).
 */
export declare function applyDeliveryConfigToDom(host: HTMLElement, config: DeliveryContentConfig): void;
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