server.enqueue(addCommonHeaders(new MockResponse().setBody(stringFromResource("/access.json"))));
server.enqueue(addCommonHeaders(
new MockResponse().setResponseCode(201).setBody(stringFromResource("/port_update_response.json"))));
try {
NeutronApi neutronApi = api(server.getUrl("/").toString(), "openstack-neutron", overrides);
PortApi api = neutronApi.getPortApi("RegionOne");
Port.UpdateOptions updatePort = Port.updateOptions()
.securityGroups(
ImmutableSet.of("85cc3048-abc3-43cc-89b3-377341426ac5", "c5ab5c29-2c99-44cb-a4b8-e70a88b77799"))
.build();