code: def start(self):
           
          logger.info("starting process")
          process = os.fork()
          time.sleep(0.01)
          if process != 0:
              logger.debug('starting child watcher')
              self.loop.reset()
              self.child_pid = process
              self.watcher = pyev.Child(self.child_pid, False, self.loop, self._child)
              self.watcher.start()
          else:
              self.loop.reset()
              logger.debug('running main function')
              self.run(*self.args, **self.kwargs) 
              logger.debug('quitting')
              sys.exit(0)
docs: Start the process, essentially forks and calls target function.