code: def push(self, label, caller_id):
      self.current_stack.append(
          (label, caller_id, timeit.default_timer())
      )
  
imports: import collections
  import functools
  import timeit
  import traceback
  import weakref
  from json import dumps
  from typing import List
  import numpy
  from .ascii_table import ascii_table
label_desc: Use image node_id 4 for calling the HierarchicalTimer obj's underlying member method code with example usage: obj.push(label, caller_id) without return types