Any sample code on how to perform this search using SuiteTalk? I want to pull in records which haven’t been populated with a custom field.

SearchLongCustomField searchLongCustomField = new SearchLongCustomField();
        searchLongCustomField.setInternalId("4569");
        searchLongCustomField.setScriptId("custentity_crma_rank");
        searchLongCustomField.setOperator(SearchLongFieldOperator.empty);