import SynergyElement from '../../internal/synergy-element.js';
/**
 * An actual element can be any HTMLElement (including SynergyElement subclasses) or undefined if no element is provided.
 */
type ActualElement = HTMLElement | undefined;
/**
 * Check if the provided event name is a blur event
 * @param eventName The event name to check
 */
export declare const isBlurEvent: (eventName: string) => boolean;
/**
 * Check if the provided event name is a change event
 * @param eventName The event name to check
 */
export declare const isChangeEvent: (eventName: string) => boolean;
/**
 * Check if the provided event is an invalid event
 * @param eventName The event name to check
 */
export declare const isInvalidEvent: (eventName: string) => boolean;
/**
 * Check if the provided element is a synergy element
 * @param element The element to check for
 * @returns True if the element is a synergy element, false otherwise
 */
export declare const isSynergyElement: (element?: HTMLElement) => element is SynergyElement;
/**
 * Get a list of event names from the provided attribute string
 * @param events The events string
 * @returns an array of events
 */
export declare const normalizeEventAttribute: (events?: string) => string[];
/**
 * Get the event name for the provided element
 * @param element The element to get the event name for
 * @param eventName The event name to get
 */
export declare const getEventNameForElement: (element: HTMLElement, eventName: string) => string;
/**
 * Check the size that the alert should use based on the provided element
 * @param element The html element to check for
 * @returns The size that the alert should use
 */
export declare const alertSizeForInput: (element?: HTMLElement) => "small" | "medium" | "large" | undefined;
/**
 * Retrieve the actual input element from the provided element, if it exists.
 * @param element The element to get the actual input for
 * @returns The html input element
 */
export declare const getActualInputElement: (element: ActualElement) => ActualElement;
export {};