    # File lib/fog/ninefold/requests/storage/head_namespace.rb, line 6
            def head_namespace(namespace = '', options = {})
              options = options.reject {|key, value| value.nil?}
              request({
                        :expects  => 200,
                        :method   => 'HEAD',
                        :path     => "namespace/" + namespace,
                        :query    => {},
                        :parse => true
                      }.merge(options))
            end