code: def test_hclust_runs():
      # GH #3290
      pytest.importorskip("xgboost")
      X = np.column_stack(
          (np.arange(1, 10), np.arange(100, 1000, step=100))
      )
      y = np.where(X[:, 0] > 5, 1, 0)
  
      clustered = hclust(X, y)
      # just check if clustered ran successfully
      assert isinstance(clustered, np.ndarray)
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_hclust_runs() without return types