/**
 * Floating UI wiring, isolated so the rest of the component never touches it.
 *
 * The v2 bug this fixes: `autoUpdate` was called on every focus and its
 * cleanup return value was discarded, so each open leaked another scroll and
 * resize loop. Here exactly one loop can exist at a time and `stop()` always
 * disposes it.
 */
export type Placement = 'top' | 'bottom' | 'left' | 'right';
export interface PositionerOptions {
    placement?: Placement | undefined;
    mainAxis?: number | undefined;
    crossAxis?: number | undefined;
    arrow?: HTMLElement | null | undefined;
}
export interface Positioner {
    start(): void;
    stop(): void;
}
export declare const createPositioner: (anchor: HTMLElement, floating: HTMLElement, options?: PositionerOptions) => Positioner;
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