code: def showWidget():
      p("show widget")
      global widgets
      if len(widgets) < 1:
          return
      widget = randItem(widgets)
      p("    %s" % widget)
      widget.show()
  
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 7 for calling a global function with example usage: showWidget() without return types