    # File lib/fog/vsphere/requests/compute/vm_power_on.rb, line 6
            def vm_power_on(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.PowerOnVM_Task
              task.wait_for_completion
              # 'success', 'running', 'queued', 'error'
              { 'task_state' => task.info.state }
            end