new_contents: 
  import time
  from tqdm import *
  
  for i in tqdm(range(100), desc="Akagi201", leave=True):
      time.sleep(0.01)
  
  for i in trange(100):
      time.sleep(0.01)
  
  for i in tqdm(xrange(100)):
      time.sleep(0.01)
subject: add hello