Interface DateVariable

interface DateVariable {
    displayFormat: string;
    endDate?: DateRestriction;
    excludedDays: Day[];
    helpText?: null | string;
    id: string;
    isReadonly: boolean;
    isRequired: boolean;
    isVisible: boolean;
    label?: null | string;
    locale: Locale;
    name: string;
    occurrences: number;
    parentId?: string;
    placeholder?: null | string;
    prefix?: ValueWithStyle;
    privateData: PrivateData;
    startDate?: DateRestriction;
    suffix?: ValueWithStyle;
    type: VariableType;
    value?: string;
    visibility: VariableVisibility;
}