code: def raiseException():
      p("raise exception")
      raise TstException("A test exception")
  
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 9 for calling a global function with example usage: raiseException() without return types