export interface ElementRect {
    width: number;
    height: number;
    top: number;
    right: number;
    bottom: number;
    left: number;
}
export interface VirtualElement {
    getBoundingClientRect: () => ElementRect;
}
export declare type PopoverDir = 'left' | 'right' | 'top' | 'bottom';
export declare type Placement = PopoverDir | 'left-start' | 'left-end' | 'right-start' | 'right-end' | 'top-start' | 'top-end' | 'bottom-start' | 'bottom-end';
export interface PopoverOffset {
    x?: number;
    y?: number;
}
export interface PopoverOption {
    placement: Placement;
    arrow?: HTMLElement;
    offset?: PopoverOffset;
}