code: def workspace_volume(
      images,
      objects_x_volume,
      objects_y_volume,
      measurements,
      module,
      objects,
      pipeline,
  ):
      images.add("example", image_volume)
  
      objects.add_objects(objects_x_volume, "m")
      objects.add_objects(objects_y_volume, "n")
  
      module.objects_x.value = "m"
      module.objects_y.value = "n"
      module.output_object.value = "merged"
  
      return cellprofiler_core.workspace.Workspace(
          pipeline, module, images, objects, measurements, None
      )
  
imports: import numpy
  import pytest
  import cellprofiler.modules.combineobjects
  import cellprofiler_core.image
  import cellprofiler_core.measurement
  import cellprofiler_core.object
  import cellprofiler_core.pipeline
  import cellprofiler_core.workspace
label_desc: Use image node_id 14 for calling a global function with example usage: workspace_volume(images, objects_x_volume, objects_y_volume, measurements, module, objects, pipeline) and returns: cellprofiler_core