code: def setUpClass(cls):
      init()
  
file_path: qlib/tests/misc/test_utils.py
imports: from typing import List
  from unittest.case import TestCase
  import unittest
  import pandas
  import numpy
  from datetime import datetime
  from qlib import init
  from qlib.config import C
  from qlib.log import TimeInspector
  from qlib.constant import REG_CN, REG_US, REG_TW
  from qlib.utils.time import cal_sam_minute, get_min_cal, CN_TIME, US_TIME, TW_TIME
label_desc: Use image node_id 1 for calling the TimeUtils obj's underlying member method code with example usage: obj.setUpClass(cls) without return types