code: def setParent():
      p("set parent")
      global widgets
      if len(widgets) < 2:
          return
      child = parent = None
      while child is parent:
          child = randItem(widgets)
          parent = randItem(widgets)
      p("    %s parent of %s" % (parent, child))
      child.setParent(parent)
  
imports: import gc
  import sys
  import weakref
  from random import randint, seed
  import pyqtgraph
  from pyqtgraph.Qt import QtTest
label_desc: Use image node_id 5 for calling a global function with example usage: setParent() without return types