/**
 * Sorts a hierarchy based on a group of sorters.
 *
 * @param {Array<Object>} hierarchy - The hierarchy to sort.
 * @param {Array<Array<string, boolean>>} sortGroup - The group of sorters to apply.
 */
export function groupSort(hierarchy: Array<Object>, sortGroup: Array<Array<string, boolean>>): void;
/**
 * Determines the selected state of a group of children in the hierarchy.
 * If all children are checked, returns 'checked'.
 * If all children are unchecked, returns 'unchecked'.
 * Otherwise, returns 'indeterminate'.
 *
 * @param {Array<Object>} children - The array of child objects with a 'selected' property.
 * @returns {string} The determined selected state: 'checked', 'unchecked', or 'indeterminate'.
 */
export function determineSelectedState(children: Array<Object>): string;
/**
 * Toggles the selection state of a node in the hierarchy.
 * Depending on whether the node to toggle is a parent or child,
 * it will either select or deselect all children, or update the parent's selection state based on its children's states.
 *
 * @param {import('./types').Hierarchy} item - The node to toggle.
 *
 */
export function toggleSelection(item: import("./types").Hierarchy): void;
/**
 * Creates a view object for managing data presentation with metadata and hierarchy structures,
 * as well as providing methods for sorting, selection, and toggling of data expansion.
 *
 * @param {Array<Object>} data    - The source data array to be presented by the view.
 * @param {Object}        options - The configuration options used for deriving metadata and hierarchy from the data.
 * @returns {import('svelte/store').Writable} An object representing the view, providing methods to manipulate and query the presentation state.
 */
export function dataview(data: Array<Object>, options: Object): import("svelte/store").Writable<any>;