code: def is_nvtx_available():
      try:
          import nvtx  # NOQA
  
          return True
      except ImportError:
          return False
  
imports: import functools
  import logging
  import os
  from contextlib import contextmanager
  from vissl.utils.layer_memory_tracking import null_context
label_desc: Use image node_id 1 for calling a global function with example usage: is_nvtx_available() and returns: True, False