code: def __str__(self):
      s = "[%s]: %s" % (
          self.__class__.__doc__,
          " ".join(map(str, self.args)),
      )
      return s
  
file_path: catboost/contrib/python/py/py2/py/_error.py
imports: from types import ModuleType
  import sys, os, errno
label_desc: Use image node_id 2 for calling the Error obj's underlying member method code with example usage: obj.__str__() and returns: s