search/search.go
func (t *Iterator) fetchMore() {
	if t.err == nil && len(t.listRes)+len(t.searchRes) == 0 && t.more != nil {
		t.err = t.more(t)
	}
}
func (t *Iterator) fetchMore() {
	if t.err == nil && len(t.listRes)+len(t.searchRes) == 0 && t.more != nil {
		t.err = t.more(t)
	}
}
// fetchMore retrieves more results, if there are no errors or pending results.