import type { Store } from '../../types/resource-id-resolver.types.js';
/**
 * File-based implementation of the Store interface.
 * Persists data to a JSON file on the filesystem.
 *
 * @template T - The type of data to be stored
 *
 * @example
 * const store = new FileStore('/path/to/store.json');
 * await store.write({ key: 'value' });
 * const data = await store.read();
 * await store.flush(); // Deletes the file
 */
export declare class FileStore<T> implements Store<T> {
    #private;
    /**
     * Creates a new file-based store
     *
     * @param filePath - Absolute path to the JSON file to use for storage
     */
    constructor(filePath: string);
    /**
     * Writes data to the file in JSON format
     *
     * @param index - Data to store
     * @throws {Error} If writing to the file fails
     */
    write(index: T): void;
    /**
     * Reads and parses data from the file
     *
     * @returns The stored data, or null if file doesn't exist
     * @throws {Error} If reading or parsing the file fails
     */
    read(): T | undefined;
    /**
     * Deletes the storage file if it exists
     *
     * @throws {Error} If deleting the file fails
     */
    flush(): void;
}
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