func (t *Iterator) Cursor() Cursor {
	if t.searchCursor == nil {
		return ""
	}
	return Cursor(*t.searchCursor)
}
func (t *Iterator) Cursor() Cursor {
	if t.searchCursor == nil {
		return ""
	}
	return Cursor(*t.searchCursor)
}
// Cursor returns the cursor associated with the current document (that is,
// the document most recently returned by a call to Next).
//
// Passing this cursor in a future call to Search will cause those results
// to commence with the first document after the current document.