import type { S3Accessor } from '../../accessor/s3.ts';
import type { DeltaHook } from '../../watch/base.ts';
import type { PathSpec, WalkEntry } from '../../types.ts';
/**
 * Recursive `ListObjectsV2` feeding the generic listing differ.
 *
 * One paginated LIST with no Delimiter covers the whole subtree, so a pull
 * costs one request per 1000 keys rather than one per directory. Reads the
 * bucket directly, never through mirage's caches, as the DeltaHook contract
 * requires.
 *
 * Fingerprints on the object's ETag, which for a single-part upload is the MD5
 * of the content, so an overwrite with identical bytes is correctly reported
 * as no change. Multipart ETags are a digest of the part digests, which still
 * changes with the content.
 */
export declare class S3Walk {
    private readonly accessor;
    constructor(accessor: S3Accessor);
    walk(root: PathSpec): AsyncGenerator<WalkEntry>;
}
export declare function buildDeltaHook(accessor: S3Accessor): DeltaHook;
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