import { Tree } from '@nx/devkit';
/**
 * `@nx/storybook`'s own preview.ts template is empty by default — fill in the
 * one piece of Stencil-specific wiring Storybook actually needs: registering
 * the generated custom-elements loader so components render at all.
 */
export declare function updatePreview(host: Tree, projectName: string): void;