import { type RequireExactlyOne } from 'type-fest';
/**
 * Options for {@link getArrayPage}.
 *
 * @category Internal
 */
export type ArrayPaginationOptions = {
    /** Split the array into pages of this size. */
    countPerPage: number;
    /** Get this page number. This is 0 indexed. */
    getPage: number;
};
/**
 * Split an array into pages of size `countPerPage` and then get the `getPage` page from that split.
 * `getPage` is `0` indexed.
 *
 * @category Array
 * @category Package : @augment-vir/common
 * @example
 *
 * ```ts
 * import {getArrayPage} from '@augment-vir/common';
 *
 * const result = getArrayPage(
 *     [
 *         'a',
 *         'b',
 *         'c',
 *     ],
 *     {
 *         countPerPage: 2,
 *         getPage: 1,
 *     },
 * );
 * // result is `['c']`
 * ```
 */
export declare function getArrayPage<ArrayEntry>(originalArray: ReadonlyArray<ArrayEntry>, options: Readonly<ArrayPaginationOptions>): ArrayEntry[] | undefined;
/**
 * Options for {@link chunkArray}. Only set one property (`chunkCount` or `chunkSize`). If the value
 * given is `0`, the array will not be chunked at all.
 *
 * @category Internal
 */
export type ChunkArrayOptions = RequireExactlyOne<{
    /** Split the array into this many chunks. */
    chunkCount: number;
    /** Split the array into chunks of this size. */
    chunkSize: number;
}>;
/**
 * Split an array into multiple sub array "chunks" based on the given options.
 *
 * @category Array
 * @category Package : @augment-vir/common
 * @example
 *
 * ```ts
 * import {chunkArray} from '@augment-vir/common';
 *
 * const result = chunkArray(
 *     [
 *         'a',
 *         'b',
 *         'c',
 *     ],
 *     {
 *         chunkSize: 2,
 *     },
 * );
 * // result is `[['a', 'b'], ['c']]`
 * ```
 */
export declare function chunkArray<ArrayEntry>(originalArray: ReadonlyArray<ArrayEntry>, options: Readonly<ChunkArrayOptions>): ArrayEntry[][];