code: def export_file_parquet():
      data = h2o.import_file(
          pu.locate("smalldata/titanic/titanic_expanded.csv"), header=1
      )
      path = pu.locate("results")
      export_dir = os.path.join(path, data.frame_id + "_export_parquet")
      if os.path.isdir(export_dir):
          shutil.rmtree(export_dir, ignore_errors=True)
      h2o.export_file(data, path=export_dir, format="parquet")
  
      assert os.path.isdir(export_dir)
      assert any(
          os.path.splitext(f)[1] == ".crc"
          for f in os.listdir(export_dir)
      )
  
imports: import os
  import shutil
  import sys
  from tests import pyunit_utils
  import h2o
label_desc: Use image node_id 2 for calling a global function with example usage: export_file_parquet() without return types