code: def test_reindex_preserves_tz_if_target_is_empty_list_or_array(self):
      # GH#7774
      index = date_range("2013-01-01", periods=3, tz="US/Eastern")
      assert str(index.reindex([])[0].tz) == "US/Eastern"
      assert str(index.reindex(np.array([]))[0].tz) == "US/Eastern"
  
imports: from datetime import timedelta
  import numpy
  from pandas import DatetimeIndex, date_range
  import pandas._testing
label_desc: Use image node_id 1 for calling the TestDatetimeIndexReindex obj's underlying member method code with example usage: obj.test_reindex_preserves_tz_if_target_is_empty_list_or_array() without return types