interface FolderTreeProps {
    currentFolderId: number | null;
    onSelectFolder: (folderId: number | null) => void;
}
/**
 * Left-rail navigation for the Media Library. Fetches folder structure internally
 * and renders:
 *
 * 1. A "Media library" title
 * 2. A "Home" entry that clears the folder query param
 * 3. A "FOLDERS" section header
 * 4. The folder tree itself
 *
 * Presentational with respect to routing — navigation is delegated to the parent
 * via `onSelectFolder` so the URL stays the single source of truth (see
 * `useFolderNavigation`).
 */
export declare const FolderTree: ({ currentFolderId, onSelectFolder }: FolderTreeProps) => import("react/jsx-runtime").JSX.Element;
export {};