code: def upgrade_settings(
      self, setting_values, variable_revision_number, module_name
  ):
      if variable_revision_number == 1:
          setting_values = setting_values[:-2]
  
          variable_revision_number = 2
  
      return setting_values, variable_revision_number
  
imports: 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 LabelSubscriber
  from cellprofiler_core.setting.text import LabelName, Integer
  from cellprofiler_core.setting import Measurement
  from cellprofiler_core.utilities.core.module.identify import add_object_location_measurements, add_object_count_measurements, get_object_measurement_columns
  from cellprofiler_library.modules import expand_or_shrink_objects
  from cellprofiler.modules import _help
  import centrosome.cpmorphology
  import numpy
  import scipy.ndimage
  import cellprofiler_core.object
label_desc: Use image node_id 7 for calling the ExpandOrShrinkObjects 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