text: from fastapi.testclient import TestClient
  from dotenv import load_dotenv, find_dotenv
  from fixtures import SessionLocal
  
  # Initialize environment variables
  load_dotenv(find_dotenv())
  
  from conductor.app.main import app
  
  
  # Setup test client and db session
  client = TestClient(app)
  session = SessionLocal()
  
  def test_read_trains():
      response = client.get("/api/trains")
      assert response.status_code == 200