question: public VNXeCommandJob deleteLunsFromLunGroup ( String lunGroupId , List < String > luns ) { LunGroupModifyParam param = new LunGroupModifyParam ( ) ; List < LunAddParam > lunDelete = new ArrayList < LunAddParam > ( ) ; for ( String lunId : luns ) { VNXeBase lun = new VNXeBase ( lunId ) ; LunAddParam lunAdd = new LunAddParam ( ) ; lunAdd . setLun ( lun ) ; lunDelete . add ( lunAdd ) ; } param . setLunDelete ( lunDelete ) ; LunGroupRequests req = new LunGroupRequests ( _khClient ) ; return req . modifyLunGroupAsync ( lunGroupId , param ) ; }
target:  Delete luns from lun group