previousToken property
Pagination token for the previous page of results. This value is returned when there are multiple pages of results, as the current request may only return a subset of results. To go back to the previous page, passing the value from this field in the pagination_token query parameter. When this field is not returned in the response, it means you are on the first page of results.
Implementation
String? get previousToken => throw _privateConstructorUsedError;