export class ThemeButton extends HTMLElement {
    _isLight: boolean;
    /** @type {ElementInternals} */
    _internals: ElementInternals;
    /**
     * @param {MouseEvent} _
     */
    _handleClick(_: MouseEvent): void;
    /**
     * @param {KeyboardEvent} event
     */
    _handleKey(event: KeyboardEvent): void;
    _toggleTheme(): void;
}
export const Component: typeof ThemeButton;
export const NAME: "th-theme-button";