def attrs
      atrs = { :has_children => 1, :name => name, :description => description }

      if !self.id.nil?
        atrs.merge!(:principal_id => self.id)
      else
        atrs.merge!(
          :type => 'group'
        )
      end
      atrs
    end
def attrs
      atrs = { :has_children => 1, :name => name, :description => description }

      if !self.id.nil?
        atrs.merge!(:principal_id => self.id)
      else
        atrs.merge!(
          :type => 'group'
        )
      end
      atrs
    end
group_options - A hash with the following keys:
                name        - The group’s name.
                description - The group's description