func (a *API) DeleteContactGroup(cfg *ContactGroup) (bool, error) {
	if cfg == nil {
		return false, fmt.Errorf("Invalid contact group config [nil]")
	}
	return a.DeleteContactGroupByCID(CIDType(&cfg.CID))
}
func (a *API) DeleteContactGroup(cfg *ContactGroup) (bool, error) {
	if cfg == nil {
		return false, fmt.Errorf("Invalid contact group config [nil]")
	}
	return a.DeleteContactGroupByCID(CIDType(&cfg.CID))
}
func ( a * API ) DeleteContactGroup ( cfg * ContactGroup ) ( bool , error ) { if cfg == nil { return false , fmt . Errorf ( " " ) } return a . DeleteContactGroupByCID ( CIDType ( & cfg . CID ) ) }
// DeleteContactGroup deletes passed contact group.
DeleteContactGroup deletes passed contact group .