code: def get_verbosity():
      global verbosity_level
      if verbosity_level is not None:
          return verbosity_level
      return int(os.getenv(VERBOSITY_VAR_NAME, DEFAULT_VERBOSITY))
  
file_path: tensorflow-upstream/tensorflow/python/autograph/utils/ag_logging.py
imports: import os
  import sys
  import traceback
  from tensorflow.python.platform import tf_logging
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 3 for calling a global function with example usage: get_verbosity() and returns: int, verbosity_level