title: How to change tqdm's bar size
body: <p>I'm using <code>tqdm</code>'s progress bar, and I'd like to shorten the bar itself by using an argument to indicate how many progress ticks the bar should have</p>
  
  <p>So instead of this</p>
  
  <pre><code>Training (16): 100%|████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████▊| 983/984 [00:04&lt;00:00, 242.42it/s, loss=0.0598]
  </code></pre>
  
  <p>I would get something like this</p>
  
  <pre><code>Training (16): 100%|█████████████| 983/984 [00:04&lt;00:00, 242.42it/s, loss=0.0598]
  </code></pre>
  
  <p>I've explored the <code>bar_format</code> argument in <code>tqdm</code>'s constructor, but couldn't figure out how to change it's size.</p>