To retrieve instances from Inventory for which SRS records are not present
- Implement the RecordLoadService interface for a happy path scenario(see steps 19 - 21)
- If any exception occurred - just log it and throw back to the caller
- Implementation retrieves Instances that do not have underlying SRS and returns RetrieveResult(Instances) back to the ExportManager.
- The Inventory records are retrieved for which marc records are to be generated
- Unit tests are added