code: def __del__(self):
      if self.ptr:
          cupy.cuda.runtime.freeHost(self.ptr)
  
imports: import numpy
  import cupy
  import torch
  import os
  from torch.utils.dlpack import to_dlpack
  from torch.utils.dlpack import from_dlpack
label_desc: Use image node_id 2 for calling the PMemory obj's underlying member method code with example usage: obj.__del__() without return types