/**
 * @license
 * Copyright 2022 Google LLC
 * SPDX-License-Identifier: BSD-3-Clause
 */
import { LitElement, type ReactiveController, type ReactiveControllerHost } from 'lit';
import { SpringController, type Position2D } from '../spring.js';
export declare class MouseController implements ReactiveController {
    host: ReactiveControllerHost;
    position: Position2D;
    private _onMouseMove;
    constructor(host: ReactiveControllerHost);
    hostConnected(): void;
    hostDisconnected(): void;
}
export declare class SpringDemo extends LitElement {
    static styles: import("lit").CSSResult;
    _mouse: MouseController;
    _spring: SpringController;
    render(): import("lit-html").TemplateResult<1>;
    _go(): void;
}
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