import { INodeDefinition, ToOutput } from '../../index.js';
import { Node } from '../../programmatic/node.js';
/**
 * A node that returns the current time each tick in seconds since the Unix epoch.
 * When the node is started, it will update the time every second.
 */
export default class NodeDefinition extends Node {
    static title: string;
    static type: string;
    static description: string;
    outputs: ToOutput<{
        value: number;
    }>;
    _interval: NodeJS.Timeout | null;
    constructor(props: INodeDefinition);
    onStart: () => void;
    onStop: () => void;
    execute(): void | Promise<void>;
}
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