type BatchJobExpirePurge struct {
	line, col      int
	RetainVersions int `yaml:"retainVersions" json:"retainVersions"`
}

var _ yaml.Unmarshaler = &BatchJobExpirePurge{}

// UnmarshalYAML - BatchJobExpirePurge extends unmarshal to extract line, col
func (p *BatchJobExpirePurge) UnmarshalYAML(val *yaml.Node) error {
	type purge BatchJobExpirePurge
	var tmp purge
	err := val.Decode(&tmp)
	if err != nil {
		return err
	}