/**
 * ArrayEqual takes two arrays and return true if equal, false otherwise
 */
export declare function arrayEqual(a: ArrayLike<any>, b: ArrayLike<any>): boolean;
/**
 * ConcatArrays takes n number arrays and returns a joint Uint8Array
 * @param arrs - An arbitrary number of n array-like number list arguments
 * @returns [a,b]
 */
export declare function concatArrays(...arrs: ArrayLike<number>[]): Uint8Array;
/**
 * Remove undefined properties from an object
 * @param obj - An object, preferably one with some undefined properties
 * @returns A copy of the object with undefined properties removed
 */
export declare function removeUndefinedProperties(obj: Record<string | number | symbol, any>): {
    [x: string]: any;
    [x: number]: any;
    [x: symbol]: any;
};