regionCode property
The Unicode country/region code (CLDR) of the location where the request is coming from.
This parameter is used to display the place details, like region-specific place name, if available. The parameter can affect results based on applicable law. For more information, see https://www.unicode.org/cldr/charts/latest/supplemental/territory_language_information.html. Note that 3-digit region codes are not currently supported.
Implementation
core.String? regionCode;