docs: def wait_for(self, pids=[], status_list=process_result_statuses):
          '''
          wait_for(self, pids=[], status_list=process_result_statuses)
  
          Waits for a process to finish
  
          :Parameters:
          * *pids* (`list`) -- list of processes waiting to be finished
          * *status_list* (`list`) -- optional - List of statuses to wait for processes to finish with
  
          :Example:
          .. code-block:: python
  
             pid = opereto_client.create_process(service='simple_shell_command', title='Test simple shell command service')
             opereto_client.wait_for([pid], ['failure', 'error'])
             opereto_client.rerun_process(pid)
  
          '''
          results={}
          pids = self._get_pids(pids)
          for pid in pids:
              while(True):
                  try:
                      stat = self._call_rest_api('get', '/processes/'+pid+'/status', error='Failed to fetch process [%s] status'%pid)
                      if stat in status_list:
                          results[pid]=stat
                          break
                      time.sleep(5)
                  except requests.exceptions.RequestException as e:
                      # reinitialize session using api call decorator
                      self.session=None
                      raise e
          return results