export default class libUtil {
    splitCopy(baseArray: Array<number>, baseStartIndex: number, targetArray: Array<number>, targetStartIndex: number, length?: number): number[];
    xor(Array1: number[], Array2: number[], length?: number): number[];
    endianConversion(params: number[]): number[];
    seedShift(A: number, shift: 0 | 8 | 16 | 24): number;
}