question: remove a value from the map concode_field_sep LinkedHashMap<S,LinkedHashMap<S,T>> values concode_field_sep boolean contains concode_elem_sep T get concode_elem_sep Set<T> removeComplementarySet concode_elem_sep void put
target: T function ( S arg0 , S arg1 ) { Map < S , T > loc0 ; if ( ( loc0 = values . get ( arg0 ) ) != null ) { if ( loc0 . containsKey ( arg1 ) ) return loc0 . remove ( arg1 ) ; } return null ; }