import { Coords, Dimensions, Maybe } from './types';
export declare const SIDE_LEFT: "left";
export declare const SIDE_RIGHT: "right";
export declare const SIDE_TOP: "top";
export declare const SIDE_BOTTOM: "bottom";
export declare const SIDE_X: readonly ["left", "right"];
export declare const SIDE_Y: readonly ["top", "bottom"];
export declare const SIDES: readonly ["left", "right", "top", "bottom"];
export declare const PLACEMENT_OVER: "over";
export declare const PLACEMENT_SCREEN: "screen";
export declare const ORIENTATIONS: readonly ["left", "right", "top", "bottom", "over", "screen"];
export declare const PLACEMENT_AUTO: "auto";
export declare const ALIGNMENT_START: "start";
export declare const ALIGNMENT_END: "end";
export declare const ALIGNMENT_ANCHORS: readonly ["start", "end"];
export declare const ALIGNMENT_CENTER = "center";
export declare const ALIGNMENTS: readonly ["start", "end", "center"];
export type Side = (typeof SIDES)[number];
export type Orientation = (typeof ORIENTATIONS)[number] | typeof PLACEMENT_AUTO;
export type Alignment = (typeof ALIGNMENTS)[number];
export type PlacementParsed = [Lowercase<Side>, Lowercase<Alignment>] | [
    typeof PLACEMENT_AUTO | typeof PLACEMENT_OVER | typeof PLACEMENT_SCREEN,
    undefined
];
export type Placement = Orientation | Uppercase<Orientation> | `${Side | Uppercase<Side>}${'_' | '-'}${Alignment | Uppercase<Alignment>}`;
export declare function parsePlacement(position: Placement | PlacementParsed | string | null | undefined): PlacementParsed;
export declare function tryGetOrientation(preferredOrientation: Orientation | undefined, anchor: Maybe<DOMRectReadOnly>, popover: Dimensions, viewport: Dimensions, offset: Coords): Orientation | undefined;
export declare function getOrientation(...arguments_: Parameters<typeof tryGetOrientation>): Orientation;
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