Echoes back the value passed in the opc-client-request-id header, for use by clients when debugging.
Paginating a list of retention rules.
opc-next-page header appears in the response, it indicates that this is a partial list
of retention rules and there are additional rules to get. Include the value of this header as
page parameter in a subsequent GET request to get the next set of retention rules.
Repeat this process to retrieve the entire list of retention rules.
For more details about how pagination works, see [List Pagination](https://docs.cloud.oracle.com/iaas/Content/API/Concepts/usingapi.htm#nine).
Unique Oracle-assigned identifier for the request. If you need to contact Oracle about a particular request, provide this request ID.
The returned model.RetentionRuleCollection instance.