run method
Runs this command.
The return value is wrapped in a Future if necessary and returned by
CommandRunner.runCommand.
Implementation
@override
void run() {
final targetDeviceFamily = argResults?['devices'];
if (targetDeviceFamily == null) {
print('Error: Missing required option --devices\n$usage');
exit(1);
}
print('Target device family: $targetDeviceFamily (${targetDeviceFamily.runtimeType})');
setTargetDeviceFamily(targetDeviceFamily);
}