import { Adapter } from "../adapters/base-adapter";
import { type AllowedData, type Instance, type DatabaseOptions, type DatabaseObserverCallback } from "./types";
/**
 * @category Data
 */
export declare class Database<Shape extends AllowedData> {
    private options;
    private instance?;
    private adapter;
    private observers;
    private observerCount;
    constructor(data: Shape, options?: DatabaseOptions<Shape>);
    constructor(adapter: Adapter<Shape>, options?: DatabaseOptions<Shape>);
    get $(): Instance<Shape>;
    get data(): Shape;
    read(): Promise<void>;
    write(): Promise<void>;
    private init;
    private setUpAutoWrite;
    unobserve(id: number): void;
    observe(callback: DatabaseObserverCallback<Shape>): number;
}