import { NodeDefinition, NodeLike, StatelessGraphNode, StatelessNodeDefinition, StatelessNodeType } from '../../types/graph';
/**
 * An instance of the [[combineLatest]] node.
 * See the [[combineLatest]] documentation to find out more.
 */
export interface CombineLatestNode extends StatelessGraphNode<'combineLatest', CombineLatestNodeProperties> {
}
/**
 * A definition of the [[combineLatest]] node.
 * See the [[combineLatest]] documentation to find out more.
 */
export interface CombineLatestNodeDefinition extends StatelessNodeDefinition<'combineLatest', CombineLatestNodeProperties> {
}
export interface CombineLatestNodeProperties {
    operations: Array<NodeDefinition>;
}
/**
 * The implementation of the [[combineLatest]].
 * See the [[combineLatest]] documentation page to lear more.
 */
export declare const CombineLatestNodeType: StatelessNodeType<'combineLatest', CombineLatestNodeProperties>;
/**
 * Creates a new instance of a [[combineLatest]] node, which is a type of a [[NodeDefinition]] used to join
 * the current values of multiple input nodes into a combined output.
 * The result of resolving the input nodes is assembled into an [[array]], maintaining the order of nodes provided to the
 * [[combineLatest]].
 *
 * When subscribing to a [[combineLatest]] node, a live subscription is created for each of the input nodes.
 * This means that, unlike the the [[parallel]] node, the [[combineLatest]] will emit a new output value whenever
 * one of its input nodes is updated.
 *
 * @example **Combining the current values of multiple input variables**
 * ```js
 * import muster, { combineLatest, ref, set, variable } from '@dws/muster';
 *
 * const app = muster({
 *   firstName: variable('Bob'),
 *   lastName: variable('Jones'),
 *   age: variable(39),
 * });
 *
 * app.resolve(combineLatest([
 *   ref('firstName'),
 *   ref('lastName'),
 *   ref('age'),
 * ])).subscribe((value) => console.log(value));
 *
 * console.log('Setting age to 40');
 * await app.resolve(set('age', 40)) // === 40
 *
 * // Console output:
 * // ['Bob', 'Jones', 39]
 * // Setting age to 40
 * // ['Bob', 'Jones', 40]
 * ```
 * This example shows how to use the [[combineLatest]] to resolve three [[NodeDefinition]]s,
 * whose values cause the overall result to re-emit.
 */
export declare function combineLatest(operations: Array<NodeDefinition | NodeLike>): CombineLatestNodeDefinition;
export declare function isCombineLatestNodeDefinition(value: NodeDefinition): value is CombineLatestNodeDefinition;