import { FASTElement } from '@microsoft/fast-element';
/**
 * The base class used for constructing a fluent-spinner custom element
 * @public
 */
export declare class BaseSpinner extends FASTElement {
    /**
     * The internal {@link https://developer.mozilla.org/en-US/docs/Web/API/ElementInternals | `ElementInternals`} instance for the component.
     *
     * @internal
     */
    elementInternals: ElementInternals;
    constructor();
}