export declare const top: "top";
export declare const bottom: "bottom";
export declare const right: "right";
export declare const left: "left";
export declare const auto: "auto";
export type BasePlacement = typeof top | typeof bottom | typeof right | typeof left;
export declare const basePlacements: Array<BasePlacement>;
export declare const start: "start";
export declare const end: "end";
export type Variation = typeof start | typeof end;
export declare const clippingParents: "clippingParents";
export declare const viewport: "viewport";
export type Boundary = Element | Array<Element> | typeof clippingParents;
export type RootBoundary = typeof viewport | 'document';
export declare const popper: "popper";
export declare const reference: "reference";
export type Context = typeof popper | typeof reference;
export type VariationPlacement = 'top-start' | 'top-end' | 'bottom-start' | 'bottom-end' | 'right-start' | 'right-end' | 'left-start' | 'left-end';
export type AutoPlacement = 'auto' | 'auto-start' | 'auto-end';
export type ComputedPlacement = VariationPlacement | BasePlacement;
export type Placement = AutoPlacement | BasePlacement | VariationPlacement;
export declare const variationPlacements: Array<VariationPlacement>;
export declare const placements: Array<Placement>;
export declare const beforeRead: "beforeRead";
export declare const read: "read";
export declare const afterRead: "afterRead";
export declare const beforeMain: "beforeMain";
export declare const main: "main";
export declare const afterMain: "afterMain";
export declare const beforeWrite: "beforeWrite";
export declare const write: "write";
export declare const afterWrite: "afterWrite";
export declare const modifierPhases: Array<ModifierPhases>;
export type ModifierPhases = typeof beforeRead | typeof read | typeof afterRead | typeof beforeMain | typeof main | typeof afterMain | typeof beforeWrite | typeof write | typeof afterWrite;