    # File lib/fog/openstack/requests/identity/delete_role.rb, line 18
            def delete_role(role_id)
              response = Excon::Response.new
              if list_roles.body['roles'].map { |r| r['id'] }.include? role_id
                self.data[:roles].delete(role_id)
                response.status = 204
                response
              else
                raise Fog::Identity::OpenStack::NotFound
              end
            end