code: def __enter__(self):
      if self.disable_gc:
          self.gcold = gc.isenabled()
          gc.disable()
      self.start_time = timeit.default_timer()
      return self
  
imports: import numpy
  import math
  import time
  import sys
  import os
  import inspect
  import re
  import uuid
  from collections import abc
  import textwrap
  from functools import wraps
  import gc
  import timeit
label_desc: Use image node_id 2 for calling the MeasureBlockTime obj's underlying member method code with example usage: obj.__enter__() and returns: self