import { TypedEmitter } from '../util';
export declare class ReturnFocus {
    prevFocusedElement?: Element | null;
    modalElement?: HTMLDivElement | null;
    readonly events: TypedEmitter<{
        unmount: () => unknown;
    }>;
    constructor();
    onOpen(): void;
    onClose(): void;
    init(): () => void;
}
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