import { type AnyObject, type Values } from '@augment-vir/core';
import { type ExcludeEmpty } from '../object/empty.js';
import { type KeyCount } from '../object/key-count.js';
import { type TsRecurse, type TsRecursionStart, type TsRecursionTracker, type TsTooMuchRecursion } from '../type/type-recursion.js';
import { type GenericSelectionSet, type SelectFrom, type SelectionSet } from './selection-set.js';
/**
 * The same as {@link selectFrom} except that the final output is collapsed until the first nested
 * value that has more than 1 key or that is not an object.
 *
 * @category Selection
 * @category Package : @augment-vir/common
 * @example
 *
 * ```ts
 * import {selectCollapsedFrom} from '@augment-vir/common';
 *
 * selectCollapsedFrom(
 *     [
 *         {
 *             child: {
 *                 grandChild: 'hi',
 *                 grandChild2: 3,
 *                 grandChild3: /something/,
 *             },
 *         },
 *         {
 *             child: {
 *                 grandChild: 'hi',
 *                 grandChild2: 4,
 *                 grandChild3: /something/,
 *             },
 *         },
 *     ],
 *     {
 *         child: {
 *             grandChild2: true,
 *         },
 *     },
 * );
 * // output is `[3, 4]`
 * ```
 *
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export declare function selectCollapsedFrom<Full extends AnyObject, const Selection extends SelectionSet<NoInfer<Full>>>(originalObject: Readonly<Full>, selectionSet: Readonly<Selection>): PickCollapsedSelection<Full, Selection>;
/**
 * Collapses a selected value to the first part of the selection that contains more than 1 key or
 * that is not an object. This produces the output type for {@link selectCollapsedFrom}.
 *
 * @category Selection
 * @category Package : @augment-vir/common
 * @package [`@augment-vir/common`](https://www.npmjs.com/package/@augment-vir/common)
 */
export type PickCollapsedSelection<Full extends Readonly<AnyObject>, Selection extends SelectionSet<Full>, Depth extends TsRecursionTracker = TsRecursionStart> = Depth extends TsTooMuchRecursion ? 'Error: recursive object depth is too deep.' : KeyCount<ExcludeEmpty<NonNullable<SelectFrom<Full, Selection, Depth>>>> extends 1 ? Selection[keyof SelectFrom<Full, Selection, Depth>] extends GenericSelectionSet ? PickCollapsedSelection<NonNullable<Full[keyof SelectFrom<Full, Selection, Depth>]>, Selection[keyof SelectFrom<Full, Selection, Depth>], TsRecurse<Depth>> | Extract<Full[keyof SelectFrom<Full, Selection, Depth>], undefined | null> : Values<SelectFrom<Full, Selection, Depth>> : SelectFrom<Full, Selection, Depth>;