export declare const BLAKE2s: {
    new (key?: Uint8Array, outlen?: number): {
        b: Uint8Array<ArrayBuffer>;
        bv: DataView<ArrayBuffer>;
        h: Uint32Array<ArrayBuffer>;
        t: Uint32Array<ArrayBuffer>;
        c: number;
        outlen: number;
        update(input: Uint8Array, offset?: number, length?: number): void;
        final(output?: Uint8Array): Uint8Array;
        compress(last: boolean): void;
    };
    readonly NAME: "BLAKE2s";
    readonly KEYBYTES: 32;
    readonly OUTBYTES: 32;
    readonly BLOCKLEN: 64;
    digest(input: Uint8Array, key?: Uint8Array, outlen?: number): Uint8Array;
};