# File lib/fog/compute/terremark/models/server.rb, line 93
        def power_off
          requires :id
          begin
            service.power_off(id)
          rescue Excon::Errors::InternalServerError => e
            # Frankly we shoudln't get here ...
            raise e unless e.to_s =~ /because it is already powered off/
          end
          true
        end