import { NodeDefinition, NodeLike, StatelessGraphNode, StatelessNodeDefinition, StatelessNodeType } from '../../types/graph';
/**
 * An instance of the [[property]] node.
 * See the [[property]] documentation to find out more.
 */
export interface PropertyNode extends StatelessGraphNode<'property', PropertyNodeProperties> {
}
/**
 * A definition of the [[property]] node.
 * See the [[property]] documentation to find out more.
 */
export interface PropertyNodeDefinition extends StatelessNodeDefinition<'property', PropertyNodeProperties> {
}
export interface PropertyNodeProperties {
    subject: NodeDefinition;
    path: Array<string>;
}
/**
 * The implementation of the [[property]] node.
 * See the [[property]] documentation to learn more.
 */
export declare const PropertyNodeType: StatelessNodeType<'property', PropertyNodeProperties>;
/**
 * Creates a new instance of a [[property]] node, which is used when extracting a value of a property from a pure JS object.
 * It works in the same way as `get` from `lodash`.
 *
 *
 * @example **Extract property from an object**
 * ```js
 * import muster, { property, value } from '@dws/muster';
 *
 * const app = muster({});
 *
 * await app.resolve(
 *   property(
 *     value({ name: 'Bob', description: 'Some description' }),
 *     'name'
 *   ),
 * );
 * // === 'Bob'
 * ```
 * This example shows how to use the [[property]] to extract the value of a property from a pure JS object.
 *
 *
 * @example **Extract nested property from an object**
 * ```js
 * import muster, { property, value } from '@dws/muster';
 *
 * const app = muster({});
 *
 * await app.resolve(
 *   property(
 *     value({
 *       deeply: {
 *         nested: { name: 'Bob', description: 'Some description' },
 *       },
 *     }),
 *     ['deeply', 'nested', 'name']
 *   ),
 * );
 * // === 'Bob'
 * ```
 * This example shows how to use the [[property]] to extract the value of a deeply nested property from a pure JS object.
 *
 *
 * @example **Extract property from a node in the graph**
 * ```js
 * import muster, { property, ref, value } from '@dws/muster';
 *
 * const app = muster({
 *   user: value({
 *     name: 'Bob',
 *     description: 'Some description',
 *   }),
 * });
 *
 * await app.resolve(property(ref('user'), 'name'));
 * // === 'Bob'
 * ```
 * This example shows that the [[property]] can operate on any kind of node that resolves to a [[value]].
 */
export declare function property(subject: NodeDefinition | NodeLike, path: string | Array<string>): PropertyNodeDefinition;
export declare function isPropertyNodeDefinition(value: NodeDefinition): value is PropertyNodeDefinition;