content: #!/usr/bin/env python3
  # Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
  
  """Set up Environment."""
  
  import slowfast.utils.logging as logging
  
  _ENV_SETUP_DONE = False
  
  
  def setup_environment():
      global _ENV_SETUP_DONE
      if _ENV_SETUP_DONE:
          return
      _ENV_SETUP_DONE = True
  