import { ReferenceElement } from '@floating-ui/dom';
import { TooltipTrigger } from './tooltip.js';
export declare function normalizeTooltipTriggers(trigger: TooltipTrigger | TooltipTrigger[] | undefined): TooltipTrigger[];
export declare function includesTooltipTrigger(triggers: TooltipTrigger[], target: TooltipTrigger): boolean;
export declare function resolveReferenceElement(reference: ReferenceElement | null | undefined): HTMLElement | null;
export declare function isTooltipTriggerKeyMatched(event: KeyboardEvent, triggerKeys: string[]): boolean;
