code: def test_enhance_zero(image, module, workspace):
      image.pixel_data = numpy.zeros((10, 10))
  
      module.method.value = "Enhance"
  
      module.enhance_method.value = "Speckles"
  
      module.run(workspace)
  
      output = workspace.image_set.get_image("output")
  
      actual = output.pixel_data
  
      assert numpy.all(actual == 0)
  
imports: import io
  import os.path
  import centrosome.filter
  import numpy
  import pytest
  import scipy.ndimage
  import skimage.exposure
  import skimage.filters
  import skimage.transform
  import tests.frontend.modules
  import cellprofiler_core.image
  import cellprofiler_core.measurement
  import cellprofiler_core.module
  import cellprofiler.modules.enhanceorsuppressfeatures
  import cellprofiler_core.object
  import cellprofiler_core.pipeline
  import cellprofiler_core.preferences
  import cellprofiler_core.workspace
  import tests.frontend
label_desc: Use image node_id 4 for calling a global function with example usage: test_enhance_zero(image, module, workspace) without return types