code: def _wrap(f):
    
    def wrapper(*args, **kwargs):
      """
      Issues a deprecation warning and passes through the arguments.
      """
      warnings.warn(str(f) + " is deprecated. Switch to calling the equivalent function in tensorflow. "
                    " This function was originally needed as a compatibility layer for old versions of tensorflow, "
                    " but support for those versions has now been dropped.")
      return f(*args, **kwargs)
    return wrapper
docs: Wraps a callable `f` in a function that warns that the function is deprecated.