/**
 * Returns the index of the last element in the array where predicate is true, and -1
 * otherwise.
 * @param array The source array to search in
 * @param predicate find calls predicate once for each element of the array, in descending
 * order, until it finds one where predicate returns true. If such an element is found,
 * findLastIndex immediately returns that element index. Otherwise, findLastIndex returns -1.
 */
export declare function findLastIndex<T>(array: T[], predicate: (value: T, index: number, obj: T[]) => boolean): number;
export declare function chunkByNumber<T>(array: T[], size: number): T[][];
export declare function isNumber(value?: unknown): value is number;
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