firebase-admin.storage package

export declare function getDownloadURL(file: File): Promise<string>;

// Get the downloadUrl for a given file ref
const storage = getStorage();
const myRef = ref(storage, 'images/mountains.jpg');
const downloadUrl = await getDownloadURL(myRef);

export declare function getStorage(app?: App): Storage;

// Get the Storage service for the default app
const defaultStorage = getStorage();

// Get the Storage service for a given app
const otherStorage = getStorage(otherApp);