code: def test_get_loc_year_str(self):
      rng = date_range("1/1/2000", "1/1/2010")
  
      result = rng.get_loc("2009")
      expected = slice(3288, 3653)
      assert result == expected
  
imports: from datetime import date, datetime, time, timedelta
  import numpy
  import pytest
  from pandas._libs import index
  from pandas.compat.numpy import np_long
  import pandas
  from pandas import DatetimeIndex, Index, Timestamp, bdate_range, date_range, notna
  import pandas._testing
  from pandas.tseries.frequencies import to_offset
label_desc: Use image node_id 9 for calling the TestGetLoc obj's underlying member method code with example usage: obj.test_get_loc_year_str() without return types