code: def test_repr_method(self):
      # Test __repr__ method
      expected_repr = (
          "<SQLConnector dialect=mysql driver=pymysql "
          "host=your_host port=443 database=your_database table=your_table>"
      )
      self.assertEqual(repr(self.connector), expected_repr)
  
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 3 for calling the TestSQLConnector obj's underlying member method code with example usage: obj.test_repr_method() without return types