code: def button_control_name(v, idx=None):
      """Return the name of a setting's button
  
      v - the setting
  
      idx - if present, the index of one of several buttons for the setting
      """
      if idx is None:
          return "%s_button" % (str(v.key()))
      else:
          return "%s_button_%d" % (str(v.key()), idx)
  
imports: import logging
  import threading
  import time
  import wx
  from cellprofiler_core.setting import ValidationError
  import cellprofiler.gui.constants.module_view
  from cellprofiler.gui.module_view._validation_request_controller import ValidationRequestController
label_desc: Use image node_id 2 for calling a global function with example usage: button_control_name(v, idx) and returns: unknown, unknown