code: def test_3levels_leading_period_index():
      # GH#24091
      pi = pd.PeriodIndex(
          [
              "20181101 1100",
              "20181101 1200",
              "20181102 1300",
              "20181102 1400",
          ],
          name="datetime",
          freq="D",
      )
      lev2 = ["A", "A", "Z", "W"]
      lev3 = ["B", "C", "Q", "F"]
      mi = MultiIndex.from_arrays([pi, lev2, lev3])
  
      ser = Series(range(4), index=mi, dtype=np.float64)
      result = ser.loc[(pi[0], "A", "B")]
      assert result == 0.0
  
imports: import numpy
  import pytest
  from pandas.errors import IndexingError, PerformanceWarning
  import pandas
  from pandas import DataFrame, Index, MultiIndex, Series
  import pandas._testing
label_desc: Use image node_id 17 for calling a global function with example usage: test_3levels_leading_period_index() without return types