Inheritance: CommandArgsBuilder
 private InstallCommandArgs GetCommandArgs(
     string packageName,
     string version)
 {
     var installCmdArgs = new InstallCommandArgs(this.Sources);
     installCmdArgs.PackageName = packageName;
     installCmdArgs.Version = version;
     installCmdArgs.OutputDirectory = "\"" + this.TempDestDirectory + "\"";
     installCmdArgs.AllowPrerelease = true;
     return installCmdArgs;
 }