import { Buffer } from 'node:buffer';
import type { ChecksumOptions, DirectoryListing, FileContents, GetStreamOptions, ListOptions, MimeTypeOptions, PublicUrlOptions, PutResult, PutStreamOptions, SignedUrlOptions, StatEntry, StorageAdapter, TemporaryUrlOptions, Visibility } from '../types';
/**
 * Create an in-memory storage adapter instance
 */
export declare function createMemoryStorage(): InMemoryStorageAdapter;
/**
 * In-memory storage adapter for testing and temporary storage
 */
export declare class InMemoryStorageAdapter implements StorageAdapter {
  constructor();
  write(path: string, contents: FileContents): Promise<PutResult>;
  read(path: string): Promise<FileContents>;
  getStream(path: string, _options?: GetStreamOptions): Promise<ReadableStream<Uint8Array>>;
  putStream(path: string, stream: ReadableStream<Uint8Array>, options?: PutStreamOptions): Promise<PutResult>;
  readToString(path: string): Promise<string>;
  readToBuffer(path: string): Promise<Buffer>;
  readToUint8Array(path: string): Promise<Uint8Array>;
  deleteFile(path: string): Promise<void>;
  deleteDirectory(path: string): Promise<void>;
  createDirectory(path: string): Promise<void>;
  moveFile(from: string, to: string): Promise<void>;
  copyFile(from: string, to: string): Promise<void>;
  stat(path: string): Promise<StatEntry>;
  list(path: string, options?: ListOptions): DirectoryListing;
  changeVisibility(path: string, visibility: Visibility): Promise<void>;
  visibility(path: string): Promise<Visibility>;
  fileExists(path: string): Promise<boolean>;
  directoryExists(path: string): Promise<boolean>;
  publicUrl(path: string, options?: PublicUrlOptions): Promise<string>;
  temporaryUrl(path: string, options: TemporaryUrlOptions): Promise<string>;
  signedUrl(_path: string, _options: SignedUrlOptions): Promise<string>;
  checksum(path: string, options?: ChecksumOptions): Promise<string>;
  mimeType(path: string, _options?: MimeTypeOptions): Promise<string>;
  lastModified(path: string): Promise<number>;
  fileSize(path: string): Promise<number>;
  clear(): void;
}