internal static bool IsConditionless(IQueryStringQuery q) => q.Query.IsNullOrEmpty();
public virtual void Visit(IQueryStringQuery query) { }
public virtual void Visit(IQueryStringQuery query) { Write("query_string"); }
public virtual void Visit(IQueryStringQuery customFiltersScore) { }
internal static bool IsConditionless(IQueryStringQuery q) => (q.Fields == null && q.DefaultField == null) || q.Query.IsNullOrEmpty();