mock-redfish-server/mockup/redfish/v1/Systems/1/Memory/index.json

{
    "@odata.type": "#MemoryCollection.MemoryCollection",
    "Name": "Memory Collection",
    "@odata.context": "/redfish/v1/$metadata#MemoryCollection.MemoryCollection",
    "Members": [
        {
            "@odata.id": "/redfish/v1/Systems/1/Memory/1"
        },
        {
            "@odata.id": "/redfish/v1/Systems/1/Memory/2"
        }
    ],
    "Description": "Memory Collection",
    "@odata.id": "/redfish/v1/Systems/1/Memory",
    "Members@odata.count": 2
}