One administrative unit, with its name in both languages and its official geocode. Unlike IExpanded (kept in the historical snake_case), this newer structured API uses camelCase.
nameTh: string
Thai name.
nameEn: string
Romanised name.
code: string
Standard geocode: 2 digits for a province, 4 for a district, 6 for a sub-district.
optional
postalCode: string
Postal code — present on sub-district entries only.