    # File lib/fog/ibm/requests/compute/delete_instance.rb, line 27
            def delete_instance(instance_id)
              response = Excon::Response.new
              if deleteable? instance_id
                # remove from memoreeeez.
                self.data[:instances].delete instance_id
                response.body = { 'success' => true }
                response.status = 200
              else
                # TODO: we should really return a 412 if the instance is in an invalid state, and a 404 if it doesn't exist.
                response.status = 404
              end
              response
            end