def get_resources(cls):
        """Returns Ext Resources."""
        exts = []
        parent = dict(member_name="agent",
                      collection_name="agents")
        controller = resource.Resource(HostingDeviceSchedulerController(),
                                       cb_faults.FAULT_MAP)
        exts.append(extensions.ResourceExtension(CFG_AGENT_HOSTING_DEVICES,
                                                 controller, parent))
        parent = dict(member_name=ciscohostingdevicemanager.DEVICE,
                      collection_name=ciscohostingdevicemanager.DEVICES)
        controller = resource.Resource(
            CfgAgentsHandlingHostingDeviceController(), cb_faults.FAULT_MAP)
        exts.append(extensions.ResourceExtension(HOSTING_DEVICE_CFG_AGENTS,
                                                 controller, parent,
                                                 PATH_PREFIX))
        return exts