create-notification-stream can not be used in helium Sr3 and lithium.

I tested it as below. It failed in helium Sr3 and lithium, but successed in hydrogen version.

<?xml version="1.0" encoding="UTF-8"?><input xmlns="urn:opendaylight:params:xml:ns:yang:controller:md:sal:remote">
<notifications>org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeUpdated</notifications>
</input>
[post]http://10.46.45.36:8181/restconf/operations/sal-remote:create-notification-stream
1653 ms
state:
501
content:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<errors xmlns="urn:ietf:params:xml:ns:yang:ietf-restconf">
<error>
<error-type>rpc</error-type>
<error-tag>operation-not-supported</error-tag>
<error-message>No implementation for this operation is available.</error-message>
</error>
</errors>