What is the counterpart of CreateFilterGroup, CreateExistsFilter and Sub Filters in server side

Hi Community,

I need to convert below client code to server side code. I could not find samples of CreateExistsFilter with sub filters in server side code. Any Idea please?

var subFilters = Terrasoft.createFilterGroup();
subFilters.addItem(Terrasoft.createColumnFilterWithParameter(Terrasoft.ComparisonType.EQUAL, "Owner", "a6b4ea0c-420c-45ab-81e7-6e76c8cc15f7"));
 
var existsFilter = Terrasoft.createExistsFilter("[Activity:Account].Id", subFilters)
esq.filters.addItem(existsFilter);