import { Nil } from '../interfaces';
/**
 * Uses a binary search to determine the lowest index at which `value` should be inserted into `array` in order to maintain its sort order.
 *
 * Contribution to minified bundle size, when it is the only function imported:
 * - Lodash: 1,266 bytes
 * - Micro-dash: 239 bytes
 */
export declare function sortedIndex<T>(array: T[] | Nil, value: T): number;