/// <reference types="react" />
export declare type Placement = 'bottom end' | 'bottom left' | 'bottom right' | 'bottom start' | 'bottom' | 'end bottom' | 'end top' | 'end' | 'left bottom' | 'left top' | 'left' | 'right bottom' | 'right top' | 'right' | 'start bottom' | 'start top' | 'start' | 'top end' | 'top left' | 'top right' | 'top start' | 'top';
export interface OverlayProps {
    /**
     * The overlay to render in the portal.
     */
    children: React.ReactNode;
    /**
     * The ref of the element to append the children to.
     */
    containerRef?: React.RefObject<HTMLElement>;
    /**
     * Whether the overlay is open.
     */
    isOpen?: boolean;
    /**
     * Handler fired after the "entered" status is applied. An extra parameter
     * isAppearing is supplied to indicate if the enter stage is occurring on
     * the initial mount
     */
    onEntered?: (node: HTMLElement, isAppearing: boolean) => void;
    /**
     * Handler fired after the "exited" status is applied.
     */
    onExited?: (node: HTMLElement) => void;
}
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