    # File lib/fog/vsphere/requests/compute/vm_migrate.rb, line 6
            def vm_migrate(options = {})
              #priority is the only required option, and it has a sane default option.
              priority = options['priority'].nil? ? 'defaultPriority' : options["priority"]
              raise ArgumentError, "instance_uuid is a required parameter" unless options.has_key? 'instance_uuid'

              # Find the VM Object
              search_filter = { :uuid => options['instance_uuid'], 'vmSearch' => true, 'instanceUuid' => true }
              vm_mob_ref = @connection.searchIndex.FindAllByUuid(search_filter).first

              unless vm_mob_ref.kind_of? RbVmomi::VIM::VirtualMachine
                raise Fog::Vsphere::Errors::NotFound,
                  "Could not find VirtualMachine with instance uuid #{options['instance_uuid']}"
              end
              task = vm_mob_ref.MigrateVM_Task(:pool => options['pool'], :host => options['host'], :priority => "#{priority}", :state => options['state'] )
              task.wait_for_completion
              { 'task_state' => task.info.state }
            end