code: def test_getitem_slice_keeps_name(self):
      idx = period_range("20010101", periods=10, freq="D", name="bob")
      assert idx.name == idx[1:].name
  
imports: from datetime import datetime
  import re
  import numpy
  import pytest
  from pandas._libs.tslibs import period
  from pandas.errors import InvalidIndexError
  import pandas
  from pandas import DatetimeIndex, NaT, Period, PeriodIndex, Series, Timedelta, date_range, notna, period_range
  import pandas._testing
label_desc: Use image node_id 1 for calling the TestGetItem obj's underlying member method code with example usage: obj.test_getitem_slice_keeps_name() without return types