class_docstr: Layer config context manager that allows setting all layer config flags at once.
  If a flag arg is None, it will not change the current value.
code: def __exit__(self, *args: Any) -> bool:
      global _SCRIPTABLE
      global _EXPORTABLE
      global _NO_JIT
      global _NO_ACTIVATION_JIT
      _SCRIPTABLE, _EXPORTABLE, _NO_JIT, _NO_ACTIVATION_JIT = self.prev
      return False
  
imports: import os
  import warnings
  from typing import Any, Optional
  import torch
label_desc: Use image node_id 3 for calling the set_layer_config obj's underlying member method code with example usage: obj.__exit__() and returns: False