code: def __repr__():
      return '"tree.dot"'
  
file_path: catboost/contrib/python/scikit-learn/py2/sklearn/tree/export.py
imports: import numpy
  import warnings
  from ..externals import six
  from .None import _criterion
  from .None import _tree
label_desc: Use image node_id 1 for calling the Sentinel obj's underlying member method code with example usage: obj.__repr__() and returns: str