code: func (m *sioMgr) isSdcMappedToVol(sdcID string, vol *siotypes.Volume) bool {
  	if len(vol.MappedSdcInfo) == 0 {
  		klog.V(4).Info(log("no attachment found"))
  		return false
  	}
  
  	for _, sdcInfo := range vol.MappedSdcInfo {
  		if sdcInfo.SdcID == sdcID {
  			return true
  		}
  	}
  	return false
  }
docs: // isSdcMappedToVol returns true if the sdc is mapped to the volume