title: h2o model not subscriptable
body: <p>I think fairly simple question - I'm looking to understand how I can extract various bits of metadata out of a h2o model I built in python?</p>
  
  <p>In R I can run the following to get this sort of information.</p>
  
  <pre><code>my_h2o_model@algorithm
  my_h2o_model@parameters
  
  my_performance = h2o.performance(my_h2o_model)
  my_performance@metrics$thresholds_and_metric_scores # awesome see all classifier metrics at each threshold
  </code></pre>
  
  <p>In python if I try </p>
  
  <pre><code>my_h2o_model['algorithm'] 
  </code></pre>
  
  <p>or</p>
  
  <pre><code>my_h2o_model[0]
  
  perf=model_performance(my_h2o_model)
  perf['metrics']['thresholds_and_metric_scores] # !!!!
  </code></pre>
  
  <blockquote>
    <p>TypeError: 'H2OGradientBoostingEstimator' object is not subscriptable</p>
  </blockquote>
  
  <p>How can get this information out of the models in python??</p>