code: def hook_brain_methods(
      func: object,
      prof: profiler.profile,
      class_hooks: Optional[Iterable[str]] = None,
  ):
      """For instances of ``speechbrain.core.Brain``, critical functions are hooked to profiler start/stop methods."""
  
      # Prepare additional hook decorators for methods of Brain:s.
      def hook_brain(f: Callable):
          """Implementation of hook_brain."""
  
          @wraps(f)
          def hook(*f_args, **f_kwargs):
              """Implementation of hook."""
              # The profiler stopped after __init__ so we need to get it up again and stop it manually also.
              prof.start()
              r = f(*f_args, **f_kwargs)
              prof.stop()
              return r
  
          return hook
  
      # Hook the crucial Brain methods.
      if class_hooks is None:
          class_hooks = ["fit", "evaluate"]
      for method in class_hooks:
          if method in dir(func):  # func is an instance of Brain
              setattr(func, method, hook_brain(getattr(func, method)))
  
file_path: speechbrain/speechbrain/utils/profiling.py
imports: import numpy
  from copy import deepcopy
  from torch import profiler
  from functools import wraps
  from typing import Any, Callable, Iterable, Optional
label_desc: Use image node_id 5 for calling a global function with example usage: hook_brain_methods(func, prof, class_hooks) and returns: hook, r