import type { HexString } from '../types';
/**
 * @name blake32to1AsU8a
 * @summary Creates a blake3 u8a from the input.
 * @description
 * From a `Uint8Array` input, create the blake3 using padding and iterative rules, and return the result as a u8a.
 *
 * If `bitLength` is not 256 by default, this function will get the same result as `blake3AsU8a` from `@zcloak/crypto`.
 *
 * If `bitLength` is 256, then this function will do the following things:
 *   - If the `Uint8Array` input's length is less than 32, we will padding it to 32 bytes, and will not perform blake3.
 *   - If the `Uint8Array` input's length is 33-64 bytes, we will padding it to 64 bytes, and do one-time blake3.
 *   - If the `Uint8Array` input's length is 64-96 bytes, we will padding it to 96 bytes, and do blake3 for the first 64 bytes, and generate a 32-byte result; Then, concat the '32-bytes hash result' with the remain 32 bytes, do another blake3;
 *
 *    So, this function will automatically do padding and iterative blake3 hash for the `Uint8Array` input.
 * @example
 * <BR>
 *
 * ```javascript
 * import { blake32to1AsU8a } from '@zcloak/crypto';
 *
 * blake32to1AsU8a(new Uint8Array([97, 98, 99])); // => [97, 98, 99, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
 * blake32to1AsU8a(new Uint8Array([54, 55, 56, 57, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 100])); // => [232, 47,  46, 107,  55, 116,  93, 176, 134, 64,  55, 208, 111, 192, 208, 198, 153, 56, 115, 176, 118, 175,  22,  23, 115, 46, 199, 235, 163, 203, 250,  51]
 * ```
 */
export declare function blake32to1AsU8a(data: HexString | Uint8Array | string, bitLength?: 64 | 128 | 256 | 384 | 512, key?: Uint8Array | null): Uint8Array;
/**
 * @description Creates a blake3 hex from the input.
 */
export declare function blake32to1AsHex(data: HexString | Uint8Array | string): HexString;