code: def test_load_flchain():
      x, y = sdata.load_flchain()
      assert x.shape == (7874, 9)
      assert y.shape == (7874,)
      assert_structured_array_dtype(y, "death", "futime", 2169)
  
imports: from contextlib import ExitStack
  from contextlib import nullcontext
  from io import StringIO
  import os
  import tempfile
  import numpy
  from numpy.testing import assert_array_almost_equal, assert_array_equal
  import pandas
  import pandas.testing
  import pytest
  import sksurv.datasets
  from sksurv.io import writearff
  from sksurv.testing import FixtureParameterFactory
label_desc: Use image node_id 6 for calling the TestLoadDatasets obj's underlying member method code with example usage: obj.test_load_flchain() without return types