import { Node, NodeOptions } from "flow-connect/core";
import { Toggle } from "flow-connect/ui";
export declare class BooleanSource extends Node {
    toggleInput: Toggle;
    static DefaultState: {
        value: boolean;
    };
    constructor();
    protected setupIO(): void;
    protected created(options: NodeOptions): void;
    protected process(): void;
    setupUI(): void;
    setupListeners(): void;
}