code: def headers():
      headers = h2o.import_file(
          pyunit_utils.locate(
              "smalldata/airlines/allyears2k_headers_only.csv"
          )
      )
      headers_and = h2o.import_file(
          pyunit_utils.locate("smalldata/airlines/allyears2k.zip")
      )
      headers_and.set_names(headers.names)
      print(headers.names)
      print(headers_and.names)
      assert (
          headers.names == headers_and.names
      ), "Expected the same column names but got {0} and {1}".format(
          headers.names, headers_and.names
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: headers() without return types