/**
 * @copyright
 * (c) 2026 netTrek GmbH & Co. KG
 *
 * Selects the C2PA engine at runtime:
 *
 * - **WASM** (@contentauth/c2pa-web) — the default. Used whenever the experimental
 *   WebCrypto engine is not enabled, or when `crypto.subtle` is unavailable.
 * - **WebCrypto** (@nettrek/c2pa-web-crypto) — experimental, opt-in via
 *   `config.enableExperimentalWebCrypto`. Used where `crypto.subtle` is available;
 *   lightweight, no WASM/worker. Per-asset, if it throws on an input it doesn't
 *   support, that asset falls back to the WASM engine (logged).
 */
import type { Settings } from '@contentauth/c2pa-web';
import { type C2paEngine } from './C2paEngine';
import { type C2PAConfig } from '../C2paBridge';
type Log = (...args: any[]) => void;
/** Creates the C2PA engine for the given config + resolved trust settings. */
export declare function createEngine(config: C2PAConfig, settings: Settings | undefined, log: Log): Promise<C2paEngine>;
export {};