startContainer method
Starts a previously created container.
Sends POST /containers/{id}/start.
No-ops when the container is already running (HTTP 304 Not Modified).
Implementation
Future<void> startContainer(String id) async {
final resp = await _request('POST', '/containers/$id/start');
if (resp.statusCode != 204 && resp.statusCode != 304) {
_throwIfError(resp);
}
}