``` $ gw clean cK2J > /dev/null && grep...

# serialization

[jw]

$ gw clean cK2J > /dev/null && grep -r "'\$serializer'" .
./frontend/build/classes/kotlin/main/frontend.js:185:    simpleName: '$serializer',

compare to

$ gw clean cK2J > /dev/null && grep -r "'\$serializer'" .
./web/output.js:88:    simpleName: '$serializer',
./web/output.js:201:    simpleName: '$serializer',
./web/output.js:295:  Object.defineProperty(Data, '$serializer', {
./web/output.js:302:  Object.defineProperty(DataList, '$serializer', {

in the example