import type { LibraryEntry, RowLibraryStorage } from '@lit-pigeon/core';
export interface FsRowLibraryStorageOptions {
    /** Directory for entry JSON files. Defaults to `~/.lit-pigeon/row-library`. */
    dir?: string;
}
/**
 * Filesystem-backed `RowLibraryStorage` — one JSON file per entry under a
 * configurable directory (default `~/.lit-pigeon/row-library`). Drop-in
 * compatible with `InMemoryRowLibraryStorage`.
 */
export declare class FsRowLibraryStorage implements RowLibraryStorage {
    readonly dir: string;
    private ready;
    constructor(opts?: FsRowLibraryStorageOptions);
    private ensureDir;
    private filePath;
    list(): Promise<LibraryEntry[]>;
    get(id: string): Promise<LibraryEntry | null>;
    save(entry: LibraryEntry): Promise<void>;
    delete(id: string): Promise<void>;
}
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