docs: def livereload_request(self, **options):
          """
          Performs the LiveReload request.
          """
          style = color_style()
          verbosity = int(options['verbosity'])
          host = '%s:%s' % (options['livereload_host'],
                            options['livereload_port'])
          try:
              urlopen('http://%s/changed?files=.' % host)
              self.message('LiveReload request emitted.\n',
                           verbosity, style.HTTP_INFO)
          except IOError as e:
              self.stdout.write(
                  self.style.WARNING('LiveReload exception: %s' % e)
              )
              pass