title: 'verbose' argument in scikit-learn
body: <p>Many scikit-learn functions have a <code>verbose</code> argument that, according to their documentation, &quot;[c]ontrols the verbosity: the higher, the more messages&quot; (e.g., <a href="https://scikit-learn.org/stable/modules/generated/sklearn.model_selection.GridSearchCV.html" rel="noreferrer">GridSearchCV</a>).</p>
  <p>Unfortunately, no guidance is provided on which integers are allowed (e.g., can a user set verbosity to 100?) and what level of verbosity corresponds to which integers. I cannot find this information anywhere in the documentation.</p>
  <p><strong>My question is, which integers map to which levels of verbosity?</strong></p>