code: public OvhInstanceVnc project_serviceName_instance_instanceId_vnc_POST(String serviceName, String instanceId) throws IOException {
  		String qPath = "/cloud/project/{serviceName}/instance/{instanceId}/vnc";
  		StringBuilder sb = path(qPath, serviceName, instanceId);
  		String resp = exec(qPath, "POST", sb.toString(), null);
  		return convertTo(resp, OvhInstanceVnc.class);
  	}
docs: Get VNC access to your instance
  
  REST: POST /cloud/project/{serviceName}/instance/{instanceId}/vnc
  @param instanceId [required] Instance id
  @param serviceName [required] Project id