import { Readable } from 'node:stream';
import type { DriverContract, FileSnapshot, ObjectMetaData, ObjectVisibility, SignedURLOptions } from './types.js';
/**
 * DriveFile is a pointer to a given object. It can be used to lazily
 * read the file contents and metadata and also you may convert it
 * to a snapshot and persist it inside the database.
 */
export declare class DriveFile {
    #private;
    /**
     * Reference to the normalized file key
     */
    key: string;
    /**
     * The basename of the file. Extracted from the key
     */
    name: string;
    /**
     * Flags to know if the object is a file or a directory
     */
    isFile: true;
    isDirectory: false;
    constructor(key: string, driver: DriverContract, metaData?: ObjectMetaData);
    /**
     * Check if the file exists. This method cannot check existence
     * of directories.
     */
    exists(): Promise<boolean>;
    /**
     * Returns file contents as a UTF-8 string. Use "getArrayBuffer" method
     * if you need more control over the file contents decoding.
     */
    get(): Promise<string>;
    /**
     * Returns file contents as a Readable stream.
     */
    getStream(): Promise<Readable>;
    /**
     * Returns file contents as a Uint8Array.
     */
    getBytes(): Promise<Uint8Array>;
    /**
     * @deprecated
     * @see {@link DriveFile.getBytes}
     */
    getArrayBuffer(): Promise<Uint8Array>;
    /**
     * Returns metadata of the given file.
     */
    getMetaData(): Promise<ObjectMetaData>;
    /**
     * Returns the visibility of the file
     */
    getVisibility(): Promise<ObjectVisibility>;
    /**
     * Returns the public URL of the file
     */
    getUrl(): Promise<string>;
    /**
     * Returns a signed/temporary URL of the file
     */
    getSignedUrl(options?: SignedURLOptions): Promise<string>;
    /**
     * Returns a snapshot of the file. The snapshot could be persisted
     * within any database storage and later you can create a file
     * instance from it using the "disk.fromSnapshot" method.
     */
    toSnapshot(): Promise<FileSnapshot>;
}