run method
Runs this command.
The return value is wrapped in a Future if necessary and returned by
CommandRunner.runCommand.
Implementation
@override
Future<int> run() async {
logger.info('Available subcommands:');
logger.info(' set - Set configuration values');
logger.info(' show - Show current configuration');
logger.info(' delete - Delete configuration');
logger.info('');
logger.info('Usage: pubmind config <subcommand>');
return ExitCode.usage.code;
}