language property
TTS-only (Qwen3): the language to condition generation on — one of
flutter_gemma_speech's qwen3SupportedLanguages, or 'auto'. Null
for non-TTS models, and for TTS models with no language parameter
(e.g. Matcha, whose locale comes from its TtsModelProfile.locale
instead) — the TTS backend defaults a null value to 'english'. Not
validated here; the TTS backend rejects an unsupported value with
ArgumentError before loading the model.
Implementation
final String? language;