code: def test_in():
      iris = h2o.import_file(
          pyunit_utils.locate("smalldata/iris/iris.csv")
      )
  
      assert (
          5.1 in iris[0]
      ), "expected 5.1 to be in the first column, but it wasn't"
      assert (
          1.7 in iris
      ), "expected 1.7 to be in the dataset, but it wasn't"
      assert (
          not 99 in iris
      ), "didn't expect 99 to be in the dataset, but it was"
      assert (
          "Iris-setosa" in iris[4]
      ), "expected Iris-setosa to be in the dataset, but it wasn't"
  
      h2o.remove(iris)
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_in() without return types