code: def adapt_frame(dataset, column_prefix=""):
      dataset[column_prefix + "community_area_name"] = dataset[
          column_prefix + "community_area_name"
      ].asfactor()
      return dataset
  
imports: import sys
  import os
  from tests import pyunit_utils
  import h2o
label_desc: Use image node_id 1 for calling a global function with example usage: adapt_frame(dataset, column_prefix) and returns: dataset