import type { Iteratee } from '../types';
import type { List } from '@sdkset/types';
/**
 * 用于创建`findIndex`、`findLastIndex`的内部函数。
 *
 * @example
 * _createPredicateIndexFinder(1)
 * => findIndex
 *
 * _createPredicateIndexFinder(-1)
 * => findLastIndex
 *
 * @param dir 1：从左至右 -1：从右至左
 */
export declare function _createPredicateIndexFinder(dir: 1 | -1): <V extends List<any>>(array: V, predicate?: Iteratee<V, boolean>, context?: unknown) => number;