import { type Readable } from 'node:stream';
import type { GCSDriverOptions } from './types.js';
import { DriveFile } from '../../src/driver_file.js';
import { DriveDirectory } from '../../src/drive_directory.js';
import type { WriteOptions, ObjectMetaData, DriverContract, SignedURLOptions, ObjectVisibility } from '../../src/types.js';
/**
 * Implementation of FlyDrive driver that reads and persists files
 * to Google cloud storage service
 */
export declare class GCSDriver implements DriverContract {
    #private;
    options: GCSDriverOptions;
    constructor(options: GCSDriverOptions);
    /**
     * Returns a boolean indicating if the file exists
     * or not.
     */
    exists(key: string): Promise<boolean>;
    /**
     * Returns the contents of a file as a UTF-8 string. An
     * exception is thrown when object is missing.
     */
    get(key: string): Promise<string>;
    /**
     * Returns the contents of the file as a Readable stream. An
     * exception is thrown when the file is missing.
     */
    getStream(key: string): Promise<Readable>;
    /**
     * Returns the contents of the file as an Uint8Array. An
     * exception is thrown when the file is missing.
     */
    getBytes(key: string): Promise<Uint8Array>;
    /**
     * Returns the file metadata.
     */
    getMetaData(key: string): Promise<ObjectMetaData>;
    /**
     * Returns the visibility of a file
     */
    getVisibility(key: string): Promise<ObjectVisibility>;
    /**
     * Returns the public URL of the file. This method does not check
     * if the file exists or not.
     */
    getUrl(key: string): Promise<string>;
    /**
     * Returns the signed/temporary URL of the file. By default, the signed URLs
     * expire in 30mins, but a custom expiry can be defined using
     * "options.expiresIn" property.
     */
    getSignedUrl(key: string, options?: SignedURLOptions): Promise<string>;
    /**
     * Updates the visibility of a file
     */
    setVisibility(key: string, visibility: ObjectVisibility): Promise<void>;
    /**
     * Writes a file to the bucket for the given key and contents.
     */
    put(key: string, contents: string | Uint8Array, options?: WriteOptions | undefined): Promise<void>;
    /**
     * Writes a file to the bucket for the given key and stream
     */
    putStream(key: string, contents: Readable, options?: WriteOptions | undefined): Promise<void>;
    /**
     * Copies the source file to the destination. Both paths must
     * be within the root location.
     */
    copy(source: string, destination: string, options?: WriteOptions): Promise<void>;
    /**
     * Moves the source file to the destination. Both paths must
     * be within the root location.
     */
    move(source: string, destination: string, options?: WriteOptions): Promise<void>;
    /**
     * Deletes the object from the bucket
     */
    delete(key: string): Promise<void>;
    /**
     * Deletes the files and directories matching the provided
     * prefix.
     */
    deleteAll(prefix: string): Promise<void>;
    /**
     * Returns a list of files. The pagination token can be used to paginate
     * through the files.
     */
    listAll(prefix: string, options?: {
        recursive?: boolean;
        paginationToken?: string;
        maxResults?: number;
    }): Promise<{
        paginationToken?: string;
        objects: Iterable<DriveFile | DriveDirectory>;
    }>;
}