code: def default_generator(self, device_index):
      return self.hpu.random.default_generators[device_index]
  
imports: import os
  import pkgutil
  import importlib
  import torch
  from .abstract_accelerator import DeepSpeedAccelerator
label_desc: Use image node_id 16 for calling the HPU_Accelerator obj's underlying member method code with example usage: obj.default_generator(device_index) and returns: self