import type { HashObject } from "@chainsafe/as-sha256/lib/hashObject";
export declare type Hasher = {
    /**
     * Hash two 32-byte Uint8Arrays
     */
    digest64(a32Bytes: Uint8Array, b32Bytes: Uint8Array): Uint8Array;
    /**
     * Hash two 32-byte HashObjects
     */
    digest64HashObjects(a: HashObject, b: HashObject): HashObject;
};
