code: def _running_on_ci():
      """Check if we're currently running on a CI system."""
      env_vars = ["CI", "BUILD_NUMBER"]
      return any(var in os.environ for var in env_vars)
  
file_path: catboost/contrib/python/pytest/py2/_pytest/assertion/truncate.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import os
  import six
label_desc: Use image node_id 3 for calling a global function with example usage: _running_on_ci() and returns: any