```ruby
require 'fog/core/model'

module Fog
  module Compute
    class HP

      class Flavor < Fog::Model

        identity :id

        attribute :disk
        attribute :name
        attribute :ram
        attribute :vcpus

        #def bits
        #  64
        #end

        #def cores
        #  # 2 quad-cores >= 2Ghz = 8 cores
        #  8 * case ram
        #  when 256
        #    1/64.0
        #  when 512
        #    1/32.0
        #  when 1024
        #    1/16.0
        #  when 2048
        #    1/8.0
        #  when 4096
        #    1/4.0
        #  when 8192
        #    1/2.0
        #  when 15872
        #    1
        #  end
        #end

      end

    end
  end
end
```

Add cores as an attribute to alias vcpus.
user
```ruby
require 'fog/core/model'

module Fog
  module Compute
    class HP

      class Flavor < Fog::Model

        identity :id

        attribute :disk
        attribute :name
        attribute :ram
        attribute :cores, :aliases => 'vcpus'

        #def bits
        #  64
        #end

      end

    end
  end
end
```
assistant