Function sublist

this isn't a native NS 'field' type, but rather is used to indicate a property should represent a NS sub-list. Pass a type derived from SublistLine that describes the sublist fields you want. e.g. Invoice.ItemSublistLine

Example

class MySublistLine extends Invoice.ItemSublistLine { custcol_foo:string }
class Invoice {
@FieldType.sublist(MySublistLine)
item: SublistLine<MySublistLine>
}