export declare function copyArray<T>(srcArr: Array<T> | Uint8Array, srcOffset: number, dstArr: Array<T> | Uint8Array, dstOffset: number, count: number): void;
export declare function createUint8ArrayFromArrayBuffer(buffer: ArrayBuffer | ArrayBufferView): Uint8Array;
export declare function hexToBytes(str: string): Uint8Array;
export declare function convertUint8ArrayToHexString(src: Uint8Array): string;