import { NodeDefinition, StatelessGraphNode, StatelessNodeDefinition, StatelessNodeType } from '../../types/graph';
/**
 * An instance of the [[parent]] node.
 * See the [[parent]] documentation to find out more.
 */
export interface ParentNode extends StatelessGraphNode<'parent'> {
}
/**
 * A definition of the [[parent]] node.
 * See the [[parent]] documentation to find out more.
 */
export interface ParentNodeDefinition extends StatelessNodeDefinition<'parent'> {
}
/**
 * The implementation of the [[parent]] node.
 * See the [[parent]] documentation to learn more.
 */
export declare const ParentNodeType: StatelessNodeType<'parent'>;
/**
 * Creates a new instance of a [[parent]] node, which is used to retrieve the parent of a given node.
 * The [[parent]] returns a [[NodeDefinition]] that is a parent in terms of the path in the
 * graph. Imagine that there's a node you can access using a following [[ref]]:
 * `ref('deeply', 'nested', 'node')`. If the `node` addressed by that ref used a [[parent]] it
 * would have returned the same node as the node addressed by `ref('deeply', 'nested')`.
 *
 *
 * @example **Retrieve a value of a sibling**
 * ```js
 * import muster, { get, parent, ref } from '@dws/muster';
 *
 * const app = muster({
 *   something: get(parent(), 'other'),
 *   other: 'other value',
 * });
 *
 * const something = await app.resolve(ref('something'));
 * // something === 'other value'
 * ```
 * This example shows how to use the [[parent]] to retrieve the value of a sibling node.
 *
 *
 * @example **Retrieve a sibling from a computed node**
 * ```js
 * import muster, { computed, get, parent, ref } from '@dws/muster';
 *
 * const app = muster({
 *   something: computed([], () =>
 *     get(parent(), 'other'),
 *   ),
 *   other: 'other value',
 * });
 *
 * const something = await app.resolve(ref('something'));
 * // something === 'other value'
 * ```
 * This example shows that the [[parent]] can be used within a [[computed]].
 */
export declare function parent(): ParentNodeDefinition;
export declare function isParentNodeDefinition(value: NodeDefinition): value is ParentNodeDefinition;