code: def run(self):
      self.visitLink(self.site)
      while self.linksWorking:
          print(len(self.linksWorking), "pending...")
          self.synchronize()
          time.sleep(self.pollingDelay)
  
file_path: ipyparallel/docs/source/examples/fetchparse.py
imports: import sys
  import time
  import bs4
  import ipyparallel
label_desc: Use image node_id 4 for calling the DistributedSpider obj's underlying member method code with example usage: obj.run() without return types