/**
* Return a new instance of nlobjSubList used for scriptable sublist (sublist).
* This object is READ-ONLY except for instances created via the UI Object API using Suitelets or beforeLoad user events.
*
* @classDescription high level container for defining sublist (many to one) relationships on a record or multi-line data entry UIs on pages.
* @return {nlobjSubList}
* @constructor
*/