///
import type { NumberOptions, ToBn } from '../types';
import type { BN } from './bn';
/**
* @name bnToU8a
* @summary Creates a Uint8Array object from a BN.
* @description
* `null`/`undefined`/`NaN` inputs returns an empty `Uint8Array` result. `BN` input values return the actual bytes value converted to a `Uint8Array`. Optionally convert using little-endian format if `isLE` is set.
* @example
*
*
* ```javascript
* import { bnToU8a } from '@polkadot/util';
*
* bnToU8a(new BN(0x1234)); // => [0x12, 0x34]
* ```
*/
declare function bnToU8a(value?: ExtToBn | BN | bigint | number | null, options?: NumberOptions): Uint8Array;
/** @deprecated Use bnToU8a(value?: ExtToBn | BN | bigint | number | null, options?: NumberOptions) */
declare function bnToU8a(value?: ExtToBn | BN | bigint | number | null, bitLength?: number, isLe?: boolean): Uint8Array;
export { bnToU8a };