declare module fb {
    interface IChangeTrack<T> {
        value: T;
        originalValue: T;
        dirty: any;
        valid: boolean;
        ignoreMerge: boolean;
        root?: fb.ResourceBase;
        propertyReference?: string;
        required: boolean;
        minLength: number;
        maxLength: number;
        regex: RegExp;
        invalidStr: string;
    }
}