code: def _finish_up():
      global context
      context.pop()
      context = None
  
      from pycuda.tools import clear_context_caches
  
      clear_context_caches()
  
imports: import pycuda.driver
  import atexit
  from pycuda.tools import make_default_context
label_desc: Use image node_id 2 for calling a global function with example usage: _finish_up() without return types