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1/**
2 * @name blake2AsU8a
3 * @summary Creates a blake2b u8a from the input.
4 * @description
5 * From a `Uint8Array` input, create the blake2b and return the result as a u8a with the specified `bitLength`.
6 * @example
7 * <BR>
8 *
9 * ```javascript
10 * import { blake2AsU8a } from '@polkadot/util-crypto';
11 *
12 * blake2AsU8a('abc'); // => [0xba, 0x80, 0xa5, 0x3f, 0x98, 0x1c, 0x4d, 0x0d]
13 * ```
14 */
15export declare function blake2AsU8a(data: string | Uint8Array, bitLength?: 64 | 128 | 256 | 384 | 512, key?: Uint8Array | null, onlyJs?: boolean): Uint8Array;
16/**
17 * @name blake2AsHex
18 * @description Creates a blake2b hex from the input.
19 */
20export declare const blake2AsHex: (data: string | Uint8Array, bitLength?: 256 | 512 | 64 | 128 | 384 | undefined, key?: Uint8Array | null | undefined, onlyJs?: boolean | undefined) => import("@polkadot/util/types").HexString;