code: def configure_virtual_attributes(attributes)
        @virtual_attributes = if attributes == true
          VirtualAttributes.new(true)
        elsif attributes.is_a?(Hash)
          VirtualAttributes.new(true, attributes)
        else
          VirtualAttributes.new(false)
        end
      end
docs: Internal - Configure virtual attributes for this server.
   If the option is `true`, we'll use the default virual attributes.
   If it's a Hash we'll map the attributes in the hash.
  
   attributes: is the option set when Ldap is initialized.
  
   Returns a VirtualAttributes.