import type { Environment } from '../../../shared/types/index.js';
export declare class GoogleDriveProvider {
    private env;
    private apiKey;
    constructor(env: Environment);
    private fetchFolderContent;
    private fetchFile;
    private isRelevantFileType;
    /**
     * Whether a URL points at a single Google Drive *file* (as opposed to a
     * folder, which {@link fetchFilesFromSharedFolder} handles).
     */
    static isFileUrl(rawUrl: string): boolean;
    /**
     * Pull the file id out of the several share-link shapes Drive hands out:
     * `/file/d/<id>/view`, `/open?id=<id>`, `/uc?id=<id>`.
     */
    private static extractFileId;
    private fetchFileMetadata;
    /**
     * Fetch a single file from a Drive share link.
     *
     * A share link is not a download link — `/file/d/<id>/view` answers with an
     * HTML page — so the id is resolved through the Drive API for its real name
     * and MIME type before the bytes are pulled.
     */
    fetchFileFromUrl(fileUrl: string): Promise<File>;
    fetchFilesFromSharedFolder(folderUrl: string): Promise<File[]>;
}