export interface ReadModel<TData = unknown> {
    readonly id: string;
    readonly data: TData;
    readonly version: number;
    readonly lastUpdated: Date;
}
export declare abstract class BaseReadModel<TData = unknown> implements ReadModel<TData> {
    readonly id: string;
    readonly data: TData;
    private _version;
    private _lastUpdated;
    constructor(id: string, data: TData, version?: number);
    get lastUpdated(): Date;
    get version(): number;
    update(newData: Partial<TData>): void;
    incrementVersion(): void;
}