anchor.diff:      URLs must point to the same file (same checksum). By default this is empty
       and `iso_url` is used. Only one of `iso_url` or `iso_urls` can be specified.
   
  --   `memory_size` (number) - The amount of memory to use for the VM in megabytes.
  +-   `memory_size` (number) - The amount of memory to use when building the VM
  +    in megabytes. Defaults to `512` megabytes.
   
   -   `network` (string) - This is the network type that the virtual machine will
       be created with. This can be one of the generic values that map to a device
  
positive.code:     given are valid. If you set this flag to `true`, Packer will skip this
      validation. Default: `false`.
  
  -   `sound` (boolean) - Enable VMware's virtual soundcard device for the VM.
  
  -   `tools_upload_flavor` (string) - The flavor of the VMware Tools ISO to
      upload into the VM. Valid values are `darwin`, `linux`, and `windows`. By
  
negative.code:     five seconds and one minute 30 seconds, respectively. If this isn't
      specified, the default is `10s` or 10 seconds.
  
  -   `cpu_count` (number) - The number of cpus to use when building the VM.
      Defaults to building with just one.
  
  -   `cdrom_adapter_type` (string) - The adapter type (or bus) that will be used
      by the cdrom device. This is chosen by default based on the disk adapter
  