import type { ReactiveController, ReactiveControllerHost } from 'lit';
/**
 * A reactive controller that determines if a slot exists and if it has assigned content.
 */
export declare class SlotController implements ReactiveController {
    host: ReactiveControllerHost & Element;
    constructor(host: ReactiveControllerHost & Element);
    private hasDefaultSlot;
    hasNamedSlot(name: string): boolean;
    /**
     * Checks if the specified slot (or the default slot if no name is passed) has content.
     * @param slotName - The name of the slot to check. Defaults to the default slot.
     * @returns True if the slot has assigned content, false otherwise.
     */
    test(slotName?: string): boolean;
    hostConnected(): void;
    hostDisconnected(): void;
}
//# sourceMappingURL=slot-controller.d.ts.map