class_docstr: Base class for stack trace transformation functions.
class_docstr_tok: ["Base","class","for","stack","trace","transformation","functions","."]
code: def update(self):
      raise NotImplementedError("subclasses need to override this")
  
imports: import collections
  import inspect
  import threading
  from tensorflow.core.framework import graph_debug_info_pb2
  from tensorflow.python.util import _tf_stack
label_desc: Use image node_id 3 for calling the StackTraceTransform obj's underlying member method code with example usage: obj.update() without return types