import type BN from 'bn.js';
import type { Codec } from '../types';
export interface CompactEncodable extends Codec {
    bitLength(): number;
    toBn(): BN;
    toNumber(): number;
}
export declare type UIntBitLength = 8 | 16 | 32 | 64 | 128 | 256;
export declare type U8aBitLength = 8 | 16 | 32 | 64 | 128 | 160 | 256 | 264 | 512 | 520 | 1024 | 2048;