code: def __del__(self):
      for filename in list(self.locks.keys()):
          self.locks[filename] = 1
          self.unlock(filename)
  
file_path: auptimizer/src/aup/Proposer/spearmint/Locker.py
imports: import os
  import sys
  import time
label_desc: Use image node_id 2 for calling the Locker obj's underlying member method code with example usage: obj.__del__() without return types