code: def upgrade_settings(
      self, setting_values, variable_revision_number, module_name
  ):
      if variable_revision_number == 1:
          # Ratio removed / filter size removed
          setting_values = setting_values[:6] + setting_values[7:]
          variable_revision_number = 2
      return setting_values, variable_revision_number
  
imports: import centrosome.filter
  import centrosome.kirsch
  import centrosome.otsu
  import numpy
  from cellprofiler_core.image import Image
  from cellprofiler_core.module import Module
  from cellprofiler_core.setting import Binary
  from cellprofiler_core.setting.choice import Choice
  from cellprofiler_core.setting.subscriber import ImageSubscriber
  from cellprofiler_core.setting.text import Float
  from cellprofiler_core.setting.text import ImageName
  from cellprofiler_library.modules import enhanceedges
label_desc: Use image node_id 8 for calling the EnhanceEdges obj's underlying member method code with example usage: obj.upgrade_settings(setting_values, variable_revision_number, module_name) and returns: setting_values,  variable_revision_number