post https://example.com/Core/GetOUTreeContents
This API is overloaded to get domains and OUs in a domain across AD directories with and without cache API variations (excluding useCache variations) 1. id = null, directoryServiceUuid = null - fetches domains seen by cloud across directory services 2. id = null, directoryServiceUuid != null - fetches domains specified by directory service uuid 3. id != null, directoryServiceUuid = null - failure case 4. id != null, directoryServiceUuid != null - gets ou under domain specified by id using directory service uuid passed in