public static Predicate<ApiFilter> isNonAggregatableInFilter(){
  return null;
}

public static Predicate < ApiFilter > isNonAggregatableInFilter ( ) { return null ; }
validity rules for non - aggregatable dimensions that are only referenced in filters . a query that references a non - aggregatable dimension in a filter without grouping by this dimension , is valid only if the requested dimension field is a key for this dimension and only a single value is requested with an inclusive operator ( ' in ' or ' eq ' ) .
