/** FireStore Database  Phone  JSON Format. Same as IR8Phone.
 */
export declare type IR8PhoneFS = IR8Phone;
export interface IR8Phone {
    phoneType?: string;
    phoneNumber?: string;
}
export declare function PhoneInitialValue(): Partial<IR8Phone>;
/** Default Validation Phone
 * Throw Error if fail
 */
export declare function CheckPhoneIsValid(Obj: Partial<IR8Phone> | Partial<IR8PhoneFS>): void;
/** Default Validation Phone
 * return Error message if failure
 */
export declare function PhoneIsValid(Obj: Partial<IR8Phone> | Partial<IR8PhoneFS>): string;
/** Serialize IR8Phone to Firestore JSON */
export declare function Phone2JSON(Obj: Partial<IR8Phone>): IR8PhoneFS;
/** Serialize Firestore JSON to IR8Phone. json can be undefined */
export declare function JSON2Phone(json: Partial<IR8PhoneFS> | undefined, target: IR8Phone): void;
/** New Phone from Firestore JSON */
export declare function JSONAsPhone(json?: Partial<IR8PhoneFS>): IR8Phone;