run method
Runs this command.
The return value is wrapped in a Future if necessary and returned by
CommandRunner.runCommand.
Implementation
@override
Future<void> run() async {
final client = _apiClientFrom(argResults!);
try {
// `/metrics` is Prometheus text outside the versioned API, and it is not
// token-gated — so this works against any reachable Hub.
stdout.write(await client.getText('/metrics'));
} finally {
client.close();
}
}