code: def test_insert_table(self, handler):
      new_table = "test_mdb"
      res = handler.native_query(
          f"INSERT INTO {new_table} (test_col) values (1), (2), (3)"
      )
      self.check_valid_response(res)
      handler.disconnect()
      handler.connect()
      res = handler.query(f"SELECT count(*) as x FROM {new_table}")
      self.check_valid_response(res)
      got_rows = res.data_frame["x"][0]
      assert got_rows == 3
  
imports: import time
  import os
  import shutil
  import tarfile
  import pytest
  import docker
  from mindsdb.integrations.handlers.mysql_handler.mysql_handler import MySQLHandler
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
label_desc: Use image node_id 7 for calling the TestMySQLHandler obj's underlying member method code with example usage: obj.test_insert_table(handler) without return types