Interface DateExtensions

interface DateExtensions {
    maxDate?:
        | NoDateConstraint
        | FixedValueDateConstraint
        | RelativeDateConstraint
        | PastDateConstraint;
    minDate?: | NoDateConstraint
    | FixedValueDateConstraint
    | RelativeDateConstraint
    | FutureDateConstraint;
    widget?: "inputGroup"
    | "datePicker";
}