class_docstr: Run all funcs in parallel.
code: def __del__(self):
      self.shutdown()
  
file_path: pysc2/pysc2/lib/run_parallel.py
imports: from concurrent import futures
  import functools
label_desc: Use image node_id 4 for calling the RunParallel obj's underlying member method code with example usage: obj.__del__() without return types