anchor.diff:      "managed_image_name": "TargetImageName",
       "managed_image_resource_group_name": "TargetResourceGroup"
   
  +
  +### Optional:
  +
  +<%= partial "partials/builder/azure/arm/Config-not-required" %>
  +<%= partial "partials/builder/azure/common/client/_Config-not-required" %>
  +
   #### Resource Group Usage
   
   The Azure builder can either provision resources into a new resource group that
  
positive.code: -   `storage_account` (string) - Storage account under which the final artifact
      will be stored.
  
  When creating a managed image the following options are required.
  
  -   `managed_image_name` (string) - Specify the managed image name where the
      result of the Packer build will be saved. The image name must not exist
  
negative.code: 
  Managed images can optionally be published to [Shared Image Gallery](https://azure.microsoft.com/en-us/blog/announcing-the-public-preview-of-shared-image-gallery/)
  as Shared Gallery Image version. Shared Image Gallery **only** works with Managed Images. **A VHD cannot be published to
  a Shared Image Gallery**.
  
  When publishing to a Shared Image Gallery the following options are required.
  
  - `shared_image_gallery_destination` (object) The name of the Shared Image Gallery under which the managed image will be published as Shared Gallery Image version.
  
  