in clients/zk_client/zk_client.go [186:192]
func (zc *ShenYuZkClient) checkCommonParam(metaData interface{}, err error) *model.MetaDataRegister {
mdr, ok := metaData.(*model.MetaDataRegister)
if !ok {
logger.Fatalf("get zk client metaData error %v:", err)
}
return mdr
}