code: def test_complex_select(self):
      sql = """
              SELECT firstName, lastName FROM lightdash_datasource.user;
          """
      assert self.run_sql(sql).shape[1] == 2
      sql = f"""
              SELECT name FROM lightdash_datasource.project_table WHERE project_uuid='{self.project_uuid}';
          """
      assert self.run_sql(sql).shape[1] == 1
  
file_path: mindsdb/tests/handler_tests/test_lightdash_handler.py
imports: import importlib
  import os
  import pandas
  import pytest
  from mindsdb_sql import parse_sql
  from ..unit.executor_test_base import BaseExecutorTest
label_desc: Use image node_id 4 for calling the TestLightdashHandler obj's underlying member method code with example usage: obj.test_complex_select() without return types