getLanguage
Desired language for the response as a subset of BCP47 format that only uses hyphenated pairs of two-digit language and country codes. Use only ISO 639-1 alpha-2 language codes and ISO 3166-1 alpha-2 country codes. See https://www.w3.org/International/articles/language-tags/
Language Options: https://developers.expediagroup.com/docs/rapid/resources/reference/language-options