code: def mojo_pipeline():
      test_dir = os.environ.get("MOJO_PIPELINE_TEST_DIR")
      if test_dir is None:
          print("Test dir not configured, MOJO Pipeline test skipped")
          return
      if not H2OMojoPipeline.available():
          print(
              "Backend is not configured for MOJO Pipelines, MOJO Pipeline test skipped"
          )
          return
  
      example_csv = os.path.join(test_dir, "example.csv")
      mojo_file = os.path.join(test_dir, "pipeline.mojo")
  
      example_data = h2o.import_file(example_csv)
      pipeline = H2OMojoPipeline(mojo_file)
  
      transformed = pipeline.transform(example_data)
      transformed.show()
  
      assert transformed.dim == [10, 2]
      totals = transformed[0] + transformed[1]
      assert totals.min() == 1
      assert totals.max() == 1
  
imports: import sys
  import h2o
  import os
  from h2o.pipeline import H2OMojoPipeline
  from tests import pyunit_utils
label_desc: Use image node_id 1 for calling a global function with example usage: mojo_pipeline() without return types