code: def test_insert_batches(self):
      global calls
      calls = 0
      lore.io.main.insert(
          self.table.name, self.dataframe, batch_size=100
      )
      self.assertEqual(calls, 0)
  
imports: from __future__ import unicode_literals
  import unittest
  from threading import Thread
  import datetime
  import time
  import math
  import lore.io.connection
  import sqlalchemy
  from sqlalchemy import event
  from sqlalchemy.engine import Engine
  import pandas
  import lore
label_desc: Use image node_id 6 for calling the TestConnection obj's underlying member method code with example usage: obj.test_insert_batches() without return types