code: def test_6_describe_table(self):
      described = self.handler.get_columns("dt_test")
      assert isinstance(described, list)
  
file_path: mindsdb/mindsdb/integrations/handlers/tidb_handler/tests/test_tidb_handler.py
imports: import unittest
  import pandas
  from mindsdb.integrations.handlers.tidb_handler.tidb_handler import TiDBHandler
label_desc: Use image node_id 7 for calling the TiDBHandlerTest obj's underlying member method code with example usage: obj.test_6_describe_table() without return types