title: Catboost plot_tree understanding
body: <p>When plotting a tree from catboost, it shows <code>val</code> in leaves; what do these values represent?</p>
  <p>I can't find the answer in their official tutorial on plotting, nor are there any such questions answered anywhere that I could find. Like:</p>
  <ol>
  <li><a href="https://stackoverflow.com/questions/60713364/lightgbm-plot-tree-leaf-numbers">LightGBM plot_tree() Leaf numbers</a></li>
  <li><a href="https://stackoverflow.com/questions/57940941/what-the-meaning-of-val-in-the-visualization-of-a-lightgbm-tree">What&#39; the meaning of &quot;Val&quot; in the visualization of a lightgbm tree?</a></li>
  <li><a href="https://github.com/catboost/catboost/issues?q=plot_tree" rel="nofollow noreferrer">https://github.com/catboost/catboost/issues?q=plot_tree</a></li>
  </ol>
  <p><a href="https://i.stack.imgur.com/DxGg8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DxGg8.png" alt="Binary Classification" /></a>
  <a href="https://i.stack.imgur.com/c0OHd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/c0OHd.png" alt="MultiClass Classification" /></a></p>