package Ġno . fd k . concept _ catalog . model Ċ Ċ import Ġcom . fasterxml . jackson . annotation . JsonIgnore Properties Ċ Ċ @ JsonIgnore Properties ( ignore Unknown Ġ= Ġtrue ) Ċ data Ġclass ĠFe il meld ing Ġ( ĊĠĠĠ Ġval Ġme ld ing : ĠString Ċ ) Ċ