code: def setUp(self, mock_create_engine):
      # Create a mock engine and connection
      self.mock_engine = Mock()
      self.mock_connection = Mock()
      self.mock_engine.connect.return_value = self.mock_connection
      mock_create_engine.return_value = self.mock_engine
  
      # Define your ConnectorConfig instance here
      self.config = SQLConnectorConfig(
          dialect="mysql",
          driver="pymysql",
          username="your_username",
          password="your_password",
          host="your_host",
          port=443,
          database="your_database",
          table="your_table",
          where=[["column_name", "=", "value"]],
      ).dict()
  
      # Create an instance of SQLConnector
      self.connector = SQLConnector(self.config)
  
imports: import unittest
  import pandas
  from unittest.mock import Mock, patch
  from pandasai.connectors.base import SQLConnectorConfig
  from pandasai.connectors.sql import PostgreSQLConnector, SQLConnector
  from pandasai.exceptions import MaliciousQueryError
label_desc: Use image node_id 1 for calling the TestSQLConnector obj's underlying member method code with example usage: obj.setUp(mock_create_engine) without return types