declare module fb {
    class ChangeTrack<T> implements IChangeTrack<T> {
        value: T;
        originalValue: T;
        checkpointValue: T;
        ignoreMerge: boolean;
        dirty: boolean;
        valid: boolean;
        missValue: boolean;
        required: boolean;
        minLength: number;
        maxLength: number;
        regex: RegExp;
        range: {
            min: number;
            max: number;
        };
        invalidStr: string;
        requiredErrorMessage: string;
        minLengthErrorMessage: string;
        maxLengthErrorMessage: string;
        regexErrorMessage: string;
        rangeErrorMessage: string;
        customValidation: any;
        customValidationErrorMessage: string;
        root: ResourceBase;
        propertyReference: string;
        invalidStateFromExternal: {
            [key: string]: {
                isValid: boolean;
                invalidStr: string;
            };
        };
        setValue(value: any): void;
        /**
         *  Denna bör användas sparsamt
         */
        setInvalidStateFromExternal(key: string, isValid: boolean, invalidStr: string): void;
        constructor(val: T, rootObject?: any, propRef?: string);
    }
    function changeTrackValid(track: fb.ChangeTrack<any>): boolean;
}