/**
 * Sort an array or object by a property.
 */
export declare function dataSortBy(items: object | string[] | number[], options?: {
    property?: string;
    order?: 'asc' | 'desc';
}): object | string[] | number[];
/**
 * Reverse an array or object.
 */
export declare function dataReverse<T extends object | string[] | number[]>(items: T): T;
/**
 * Returns single unique values within an array or object
 */
export declare function dataRemoveDuplicates<T extends string | number>(...arrays: T[][]): T[];
/**
 * Flatten an array of arrays or an object of objects into a single array or object. That was hard to say.
 */
export declare function dataFlatten<T extends object | string[] | number[]>(items: T): T;
/**
 * Returns an array without a property or properties.
 */
export declare function dataWithout<T extends object | string[] | number[]>(items: T, properties: string | number | string[] | number[]): T;