code: def test_display_no_objects():
      workspace, module = make_workspace([], numpy.zeros((50, 120)))
      module.run(workspace)
      image = workspace.image_set.get_image(OUTPUT_IMAGE_NAME)
  
imports: import centrosome.cpmorphology
  import numpy
  import pytest
  import six.moves
  import cellprofiler_core.image
  import cellprofiler_core.measurement
  import cellprofiler.modules.displaydataonimage
  import cellprofiler_core.object
  import cellprofiler_core.pipeline
  import cellprofiler_core.workspace
  import tests.frontend.modules
label_desc: Use image node_id 7 for calling a global function with example usage: test_display_no_objects() without return types