import { ddpReactiveCollection } from './ddpReactiveCollection';
/**
 * A reactive document class.
 * reactive object won't change when corresponding object is being deleted.
 */
export declare class ddpReactiveDocument<T> {
    private _ddpReactiveCollectionInstance;
    private _started;
    private readonly _data;
    private _tickers;
    private _preserve;
    constructor(ddpReactiveCollectionInstance: ddpReactiveCollection<T>, settings: {
        preserve: any;
    } | null);
    /**
   * Updates reactive object from local collection copies.
   */
    private _update;
    /**
   * Starts reactiveness for the document. This method is being called on instance creation.
   */
    start(): void;
    /**
   * Stops reactiveness for the document.
   */
    stop(): void;
    /**
   * Returns reactive document.
   */
    data(): T;
    /**
   * Runs a function every time a change occurs.
   */
    onChange(f: {}): {
        start: () => void;
        stop: () => void;
    };
    /**
   * Change reactivity settings.
   * @param {boolean} settings.preserve - When preserve is true,reactive object won't change when corresponding object is being deleted.
   */
    settings({ preserve }: {
        preserve: boolean;
    }): void;
}