export declare function createCustomEvent<T>(name: string, options?: CustomEventInit): CustomEvent<T>;
export declare function eventWasDefaultPrevented(event: Event): Promise<boolean>;
export declare function stopEvent(event: any): void;
export declare function onKeys(events: string[], event: KeyboardEvent, fn: () => any): void;
export declare const getElementUpdates: (element: HTMLElement, propertyKey: string, fn: (value: any) => void) => MutationObserver;
export declare function listenForAttributeChange(element: HTMLElement, attrName: string, fn: (attrValue: string | null) => void): MutationObserver;
export declare function listenForAttributeListChange(element: HTMLElement, attrNames: string[], fn: (mutation: MutationRecord) => void): MutationObserver;
export type TouchedElement = HTMLElement & {
    __bpTouched?: boolean;
};
export declare function onFirstInteraction(element: HTMLElement): Promise<null>;