export type OpfsEntryType = {
    name: string;
    kind: 'file' | 'directory';
};
export declare class OpfsStorage {
    private rootPromise;
    private readonly baseDir;
    constructor(baseDir?: string);
    static isSupported(): boolean;
    init(): Promise<void>;
    exists(path?: string): Promise<boolean>;
    mkdir(path: string): Promise<FileSystemDirectoryHandle>;
    list(path?: string): Promise<OpfsEntryType[]>;
    readFile(path: string): Promise<File>;
    readBlob(path: string): Promise<Blob>;
    readText(path: string): Promise<string>;
    readJSON<T>(path: string): Promise<T>;
    write(path: string, data: Blob | BufferSource | string, options?: {
        shouldCreateDirectories?: boolean;
    }): Promise<void>;
    writeText(path: string, text: string, options?: {
        shouldCreateDirectories?: boolean;
    }): Promise<void>;
    writeJSON(path: string, value: unknown, options?: {
        shouldCreateDirectories?: boolean;
        space?: number;
    }): Promise<void>;
    delete(path: string, recursive?: boolean): Promise<void>;
    getObjectURL(path: string): Promise<{
        url: string;
        revoke: () => void;
    }>;
    getSize(path: string): Promise<number>;
    rename(fromPath: string, toPath: string): Promise<void>;
    copy(fromPath: string, toPath: string): Promise<void>;
    private getRoot;
    private getHandle;
    private getFileHandle;
    private getDirectoryHandle;
    private getDirectoryHandleAbsolute;
    private resolvePath;
    private normalizePath;
    private splitPath;
    private isTypeMismatchError;
}