code: def pyunit_types():
      pros = h2o.import_file(
          pyunit_utils.locate("smalldata/prostate/prostate.csv")
      )
      types = pros.types
      print(types)
      assert sorted(types.values()) == sorted(
          [
              "int",
              "int",
              "int",
              "int",
              "int",
              "int",
              "real",
              "real",
              "int",
          ]
      )
  
      pros[1] = pros[1].asfactor()
  
      types2 = pros.types
  
      print(types2)
      assert sorted(types2.values()) == sorted(
          [
              "int",
              "enum",
              "int",
              "int",
              "int",
              "int",
              "real",
              "real",
              "int",
          ]
      )
  
imports: import sys
  import h2o
  from tests import pyunit_utils
  import numpy
label_desc: Use image node_id 1 for calling a global function with example usage: pyunit_types() without return types