import Logger from '../logger/Logger';
export default class BackgroundSegmentationAssetLoader {
    private logger;
    private loadPromise;
    constructor(logger: Logger);
    /**
     * Load the processor by inserting a `<script src>` tag pointing at the CDN.
     * Resolves when the script has loaded and `BackgroundSegmentationProcessor`
     * is available on `window`.
     *
     * This method deduplicates concurrent calls by reusing the same promise
     * and allows retries on failure by clearing the promise.
     * If the processor is already loaded on window, returns immediately.
     * If a load is in progress, subsequent calls wait for the same promise instead of
     * creating duplicate script tags. On failure, the promise is cleared to allow retries.
     *
     * @returns Load time in milliseconds (0 if already loaded)
     */
    load(): Promise<number>;
    private doLoad;
}