title: How set custom class weights in Detectron2
body: <p>I use <a href="https://detectron2.readthedocs.io/tutorials/install.html" rel="nofollow noreferrer">https://detectron2.readthedocs.io/tutorials/install.html</a> for my dataset with another classes and objects.</p>
  <p>And my dataset is unbalanced. I wish set different weights for each class. How can I do that?</p>