Current language: theme data reference

Reading the data tables. Presence varies by page and state; this is not a requirement to populate every field.

Field	Type	Meaning	Availability
viewModel.language	object	Language data; check child fields before use.	When the parent is provided; check optional fields.
viewModel.language.isoCode	string	Iso code value supplied for this context.	When the parent is provided; check optional fields.
viewModel.language.languageId	number	language identifier; do not load data with it.	When the parent is provided; check optional fields.