/**
 * Returns an array of items from an overloaded rest parameter.
 * @param overloadedArray An array of items or an array of arrays of items.
 * @returns An array of items.
 * @example getArrayFromOverloadedRest([1, 2, 3]) // [1, 2, 3]
 * @example getArrayFromOverloadedRest(1, 2, 3) // [1, 2, 3]
 */
export declare function getArrayFromOverloadedRest<T>(overloadedArray: Array<T | T[]>): T[];