import { BaseConstructor } from '../Base/Base.js';
/**
 * Register globally and mount a given component, or a promise resolving to a component.
 *
 * @link https://js-toolkit.studiometa.dev/api/helpers/registerComponent.html
 * @param ctor The component constructor or a promise resolving to it.
 * @param nameOrSelector The name or selector to used for this component.
 * @return A promise resolving to an array of mounted component instances.
 */
export declare function registerComponent<T extends BaseConstructor = BaseConstructor>(ctor: T | Promise<T>, nameOrSelector?: string): Promise<Awaited<InstanceType<T>>[]>;