code: def test_replace(self):
      lore.io.main.replace(self.table.name, self.dataframe)
      selected = lore.io.main.dataframe(sql="select * from tests_users")
      self.assertEqual(
          self.dataframe["first_name"].tolist(),
          selected["first_name"].tolist(),
      )
      self.assertEqual(
          self.dataframe["last_name"].tolist(),
          selected["last_name"].tolist(),
      )
  
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 4 for calling the TestConnection obj's underlying member method code with example usage: obj.test_replace() without return types