code: @Override protected boolean toJavaCheckTooBig() {
      // If the number of leaves in a forest is more than N, don't try to render it in the browser as POJO code.
      return _output==null || _output._treeStats._num_trees * _output._treeStats._mean_leaves > 1000000;
    }
docs: Override in subclasses to provide some top-level model-specific goodness