code: def _expected_loop(self):
      total = 0
      total_large = 0
      total_small = 0
      total_tiny = 0
      for loop_iter in range(10):
          outer = loop_iter * 10
          for inner_iter in range(loop_iter):
              val = outer + inner_iter
              if val >= 80:
                  total_large += val
              elif val >= 50:
                  total_small += val
              else:
                  total_tiny += val
              total += val
      return total, total_large, total_small, total_tiny
  
imports: from caffe2.python import workspace
  from caffe2.python.core import Plan, to_execution_step, Net
  from caffe2.python.task import Task, TaskGroup, final_output
  from caffe2.python.net_builder import ops, NetBuilder
  from caffe2.python.session import LocalSession
  import unittest
  import threading
label_desc: Use image node_id 2 for calling the TestNetBuilder obj's underlying member method code with example usage: obj._expected_loop() and returns: total,  total_large,  total_small,  total_tiny