import { NodeDefinition, NodeLike, StatelessGraphNode, StatelessNodeDefinition, StatelessNodeType } from '../../types/graph';
/**
 * An instance of the [[debug]] node.
 * See the [[debug]] documentation to find out more.
 */
export interface DebugNode extends StatelessGraphNode<'debug', DebugNodeProperties> {
}
/**
 * A definition of the [[debug]] node.
 * See the [[debug]] documentation to find out more.
 */
export interface DebugNodeDefinition extends StatelessNodeDefinition<'debug', DebugNodeProperties> {
}
export interface DebugNodeProperties {
    target: NodeDefinition;
}
/**
 * The implementation of the [[debug]].
 * See the [[debug]] documentation to learn more.
 */
export declare const DebugNodeType: StatelessNodeType<'debug', DebugNodeProperties>;
/**
 * Creates a new instance of a [[debug]] node, which is a type of [[NodeDefinition]] that can be useful when debugging
 * an application. This node can be used as a wrapper for any node and will trigger the JS debugger breakpoint when the
 * wrapped node is evaluated. Additionally, the output of the node will be logged to the console.
 *
 *
 * @example **Debug a computed node**
 * ```js
 * import muster, { computed, debug } from '@dws/muster';
 *
 * const app = muster({});
 *
 * await app.resolve(debug(computed([], () => {
 *   console.log('Evaluating the computed');
 *   return 2;
 * })));
 *
 * // Console output:
 * // Evaluating the computed
 * // { input: <<computed node json>>, output: { $type: 'value', value: 2 } }
 * ```
 * Running this code will cause a JS debugger breakpoint to be triggered after evaluating the
 * [[computed]] node. Note the order of the messages in the console output.
 */
export declare function debug(target: NodeLike | NodeDefinition): DebugNodeDefinition;
export declare function isDebugNodeDefinition(value: NodeDefinition): value is DebugNodeDefinition;