protected override Task <int> InvokeInternal()
        {
            _log.LogDebug($"Android Test command called: App = {_arguments.AppPackagePath}{Environment.NewLine}Instrumentation Name = {_arguments.InstrumentationName}");
            _log.LogDebug($"Output Directory:{_arguments.OutputDirectory}{Environment.NewLine}Working Directory = {_arguments.WorkingDirectory}{Environment.NewLine}Timeout = {_arguments.Timeout.TotalSeconds} seconds.");
            _log.LogDebug("Arguments to instrumentation:");

            if (!File.Exists(_arguments.AppPackagePath))
            {
                _log.LogCritical($"Couldn't find {_arguments.AppPackagePath}!");
                return(Task.FromResult((int)ExitCodes.PACKAGE_NOT_FOUND));
            }
            var    runner  = new AdbRunner(_log);
            string apkName = Path.GetFileNameWithoutExtension(_arguments.AppPackagePath);

            try
            {
                using (_log.BeginScope("Initialization and setup of APK on device"))
                {
                    runner.KillAdbServer();
                    runner.StartAdbServer();
                    runner.ClearAdbLog();

                    _log.LogDebug($"Working with {runner.GetAdbVersion()}");

                    // If anything changed about the app, Install will fail; uninstall it first.
                    // (we'll ignore if it's not present)
                    runner.UninstallApk(apkName);
                    if (runner.InstallApk(_arguments.AppPackagePath) != 0)
                    {
                        _log.LogCritical("Install failure: Test command cannot continue");
                        return(Task.FromResult((int)ExitCodes.PACKAGE_INSTALLATION_FAILURE));
                    }
                    runner.KillApk(apkName);

                    // App needs to be able to read and write the storage folders we use for IO
                    runner.GrantPermissions(apkName,
                                            new string[] { "android.permission.READ_EXTERNAL_STORAGE",
                                                           "android.permission.WRITE_EXTERNAL_STORAGE" });
                }

                // No class name = default Instrumentation
                runner.RunApkInstrumentation(apkName, _arguments.InstrumentationName, _arguments.InstrumentationArguments);

                using (_log.BeginScope("Post-test copy and cleanup"))
                {
                    var logs = runner.PullFiles("/sdcard/Documents/helix-results", _arguments.OutputDirectory);
                    foreach (string log in logs)
                    {
                        _log.LogDebug($"Detected output file: {log}");
                    }
                    runner.DumpAdbLog(Path.Combine(_arguments.OutputDirectory, "adb-logcat.log"));
                    runner.UninstallApk(apkName);
                }

                return(Task.FromResult((int)ExitCodes.SUCCESS));
            }
            catch (Exception toLog)
            {
                _log.LogCritical(toLog, $"Failure to run test package: {toLog.Message}");
            }
            finally
            {
                runner.KillAdbServer();
            }

            return(Task.FromResult((int)ExitCodes.GENERAL_FAILURE));
        }