This happens because the metadata for operations to add network labels contains an extra slash at the end of the URL. That means that the RSDL generator ignores that metadata. As a result the generated RSDL document and the SDKs aren't complete.
The proposed change fixes the metadata. After that the SDKs will need to be regenerated.
This issue has been fixed in the RESTAPI. To have it completely fixed the SDKs need to be regenerated. The fix will be available in the next downstrem 3.5 builds of the SDKs.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-0183.html