class_docstr: Wrapper around the profilers of Pytorch to provide a uniform
  interface, independent of the chosen implementation
code: def _enter_actions(self):
      logging.info("Entering profiler...")
      self.profiler.__enter__()
      self.started = True
  
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 8 for calling the Profiler obj's underlying member method code with example usage: obj._enter_actions() without return types