import { StorageBackend, StorageResult, StorageUploadOptions, WebDAVStorageConfig } from './base';
export declare class WebDAVStorageBackend implements StorageBackend {
    private config;
    readonly type: "webdav";
    readonly hasPublicUrl = true;
    private basePath;
    constructor(config: WebDAVStorageConfig);
    init(): Promise<void>;
    upload(buffer: Buffer, filename: string): Promise<StorageResult>;
    uploadStream(stream: NodeJS.ReadableStream, filename: string, options?: StorageUploadOptions): Promise<StorageResult>;
    download(key: string): Promise<Buffer>;
    downloadStream(key: string): NodeJS.ReadableStream;
    delete(key: string): Promise<void>;
    exists(key: string): Promise<boolean>;
    private ensureBasePath;
    private ensureDirectory;
    private b64;
    private trimSlash;
    private encodePath;
}