ruffer-pattern-portfolio/build/lib/MockData/RecentDocuments.d.ts

This is the end result from https://dev.to/swyx/quick-guide-to-setup-your-react--typescript-storybook-design-system-1c51

declare const RecentDocuments: {
    title: string;
    link: string;
    tags: string[];
    isNew: boolean;
    lastUpdate: string;
}[];
export default RecentDocuments;