func (c *ConfigWriter) setupClusterConfigWriter() (*tabwriter.Writer, []*cluster.Cluster, error) {
	clusters, err := c.retrieveSortedClusterSlice()
	if err != nil {
		return nil, nil, err
	}
	w := new(tabwriter.Writer).Init(c.Stdout, 0, 8, 5, ' ', 0)
	return w, clusters, nil
}

func (c *ConfigWriter) retrieveSortedClusterSlice() ([]*cluster.Cluster, error) {
	if c.configDump == nil {