sessionAddImage method
Adds a user image part to the pending turn.
Implementation
@override
Future<void> sessionAddImage(
String sessionId,
Uint8List imageBytes, {
String mimeType = 'image/jpeg',
}) async {
if (!info.supportsVision) {
throw const OnDeviceAiUnsupportedException('Fake backend has no vision.');
}
_session(sessionId).pending.add('[image $mimeType ${imageBytes.length}B]');
}