/**
 * A way to keep track of things you've "on"ed so you can "off" them too.
 *
 * This is needed because Svelte doesn't have an "off" function, it returns
 * unlisten functions from its "on" function, and MDC-Web expects register and
 * deregister functions in the adapters.
 */
export declare class SvelteEventManager {
    elementMap: Map<Element | Window | Document, {
        [k: string]: Map<Function, Function>;
    }>;
    /**
     * Listen to an event on an element.
     */
    on<T extends Event>(element: Element | Window | Document, event: string, handler: (evt: T) => void, options?: AddEventListenerOptions): void;
    /**
     * Unlisten to an event on an element.
     */
    off<T extends Event>(element: Element | Window | Document, event: string, handler: (evt: T) => void): void;
    /**
     * Unlisten to all events managed by this instance.
     */
    clear(): void;
}