import { BaseFileStore } from "./base.js";
/**
 * Class that provides an in-memory file storage system. It extends the
 * BaseFileStore class and implements its readFile and writeFile methods.
 * This class is typically used in scenarios where temporary, in-memory
 * file storage is needed, such as during testing or for caching files in
 * memory for quick access.
 */
export declare class InMemoryFileStore extends BaseFileStore {
    lc_namespace: string[];
    private files;
    /**
     * Retrieves the contents of a file given its path. If the file does not
     * exist, it throws an error.
     * @param path The path of the file to read.
     * @returns The contents of the file as a string.
     */
    readFile(path: string): Promise<string>;
    /**
     * Writes contents to a file at a given path. If the file already exists,
     * it overwrites the existing contents.
     * @param path The path of the file to write.
     * @param contents The contents to write to the file.
     * @returns Void
     */
    writeFile(path: string, contents: string): Promise<void>;
}