    # File lib/fog/vsphere/requests/compute/vm_config_vnc.rb, line 5
            def vm_config_vnc(options = { })
              raise ArgumentError, "instance_uuid is a required parameter" unless options.has_key? 'instance_uuid'

              search_filter = { :uuid => options['instance_uuid'], 'vmSearch' => true, 'instanceUuid' => true }
              vm_mob_ref    = @connection.searchIndex.FindAllByUuid(search_filter).first
              task          = vm_mob_ref.ReconfigVM_Task(:spec => {
                :extraConfig => [
                  { :key => 'RemoteDisplay.vnc.enabled',  :value => options[:enabled] ? 'true' : 'false' },
                  { :key => 'RemoteDisplay.vnc.password', :value => options[:password].to_s },
                  { :key => 'RemoteDisplay.vnc.port',     :value => options[:port].to_s || '5910' }
                ]
              })
              task.wait_for_completion
              { 'task_state' => task.info.state }
            end