code: def _enumerate_plugin_if(self, found_list, verb, threads, imu_list,
              hide_progressbar, timeout=15, headers={}):
          
  
          if not hide_progressbar:
              p = ProgressBar(sys.stderr, len(found_list) *
                      len(imu_list), name="IMU")
  
          requests_verb = getattr(self.session, verb)
          with ThreadPoolExecutor(max_workers=threads) as executor:
              futures = []
              for i, found in enumerate(found_list):
                  found_list[i]['imu'] = []
                  for imu in imu_list:
                      interesting_url = found['url'] + imu[0]
                      future = executor.submit(requests_verb, interesting_url,
                              timeout=timeout, headers=headers)
  
                      futures.append({
                          'url': interesting_url,
                          'future': future,
                          'description': imu[1],
                          'i': i
                      })
  
              for f in futures:
                  if common.shutdown:
                      f['future'].cancel()
                      continue
  
                  r = f['future'].result()
                  if r.status_code == 200:
                      found_list[f['i']]['imu'].append({
                          'url': f['url'],
                          'description': f['description']
                      })
  
                  if not hide_progressbar:
                      p.increment_progress()
  
          if not hide_progressbar:
              p.hide()
  
          return found_list
docs: Finds interesting urls within a plugin folder which respond with 200 OK.
          @param found_list: as returned in self.enumerate. E.g. [{'name':
              'this_exists', 'url': 'http://adhwuiaihduhaknbacnckajcwnncwkakncw.com/sites/all/modules/this_exists/'}]
          @param verb: the verb to use.
          @param threads: the number of threads to use.
          @param imu_list: Interesting module urls.
          @param hide_progressbar: whether to display a progressbar.
          @param timeout: timeout in seconds for http requests.
          @param headers: custom headers as expected by requests.