code: def test_get_single_device(device):
      """
      测试正常情况下初始化 PaddleSingleDriver 的情况
      """
  
      model = PaddleNormalModel_Classification_1(20, 10)
      driver = initialize_paddle_driver("paddle", device, model)
      assert isinstance(driver, PaddleSingleDriver)
  
file_path: fastNLP/tests/core/drivers/paddle_driver/test_initialize_paddle_driver.py
imports: import os
  import pytest
  from fastNLP.core.drivers import PaddleSingleDriver, PaddleFleetDriver
  from fastNLP.core.drivers.paddle_driver.initialize_paddle_driver import initialize_paddle_driver
  from fastNLP.envs import get_gpu_count
  from tests.helpers.models.paddle_model import PaddleNormalModel_Classification_1
  from tests.helpers.utils import magic_argv_env_context
  from fastNLP.envs.imports import _NEED_IMPORT_PADDLE
label_desc: Use image node_id 2 for calling a global function with example usage: test_get_single_device(device) without return types