skipConfirmationFlagHelpStr = `The skipConfirmation determines whether the user is prompted for confirmation.
If set to true, the user is not prompted and a Yes response is assumed in all cases.`
	filenameFlagHelpStr = `Path to file containing IstioOperator custom resource
This flag can be specified multiple times to overlay multiple files. Multiple files are overlaid in left to right order.`

		Aliases: []string{"x", "exp"},
		Short:   "Experimental commands that may be modified or deprecated",
	}

	xdsBasedTroubleshooting := []*cobra.Command{
		// TODO(hanxiaop): I think experimental version still has issues, so we keep the old version for now.
		version.XdsVersionCommand(ctx),
		// TODO(hanxiaop): this is kept for some releases in case someone is using it.
		proxystatus.XdsStatusCommand(ctx),
	}