code: def test_get_categories_image(self):
      module = (
          cellprofiler_core.module.image_segmentation._object_processing.ObjectProcessing()
      )
  
      module.x_name.value = "Objects"
  
      actual = module.get_categories(
          None, cellprofiler_core.constants.measurement.IMAGE
      )
  
      expected = [cellprofiler_core.constants.measurement.C_COUNT]
  
      assert actual == expected
  
imports: import numpy
  import cellprofiler_core.constants.measurement
  import cellprofiler_core.image
  import cellprofiler_core.measurement
  import cellprofiler_core.module
  import cellprofiler_core.module.image_segmentation._image_segmentation
  import cellprofiler_core.module.image_segmentation._object_processing
  import cellprofiler_core.object
  import cellprofiler_core.workspace
label_desc: Use image node_id 1 for calling the TestObjectProcessing obj's underlying member method code with example usage: obj.test_get_categories_image() without return types