languageCode property
The message language.
This should be a [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag. Example: "en-US".
Optional.
Implementation
core.String? languageCode;
The message language.
This should be a [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag. Example: "en-US".
Optional.
core.String? languageCode;