code: def _configure_defaults():
      global mpu, num_layers, deepspeed_checkpointing_enabled
  
      global PARTITION_ACTIVATIONS, CONTIGUOUS_CHECKPOINTING, CPU_CHECKPOINT, SYNCHRONIZE, PROFILE_TIME
  
      PARTITION_ACTIVATIONS = False
      CONTIGUOUS_CHECKPOINTING = False
      num_layers = False
      CPU_CHECKPOINT = False
      SYNCHRONIZE = False
      PROFILE_TIME = False
      deepspeed_checkpointing_enabled = True
  
imports: import copy
  import torch
  import contextlib
  from deepspeed import comm
  import weakref
  import mmap
  from torch import _C
  from deepspeed.runtime.config import DeepSpeedConfig
  from deepspeed.utils import logger
  from deepspeed.runtime.utils import copy_to_device, move_to_device, see_memory_usage, bwc_tensor_model_parallel_rank
  from deepspeed.utils.timer import SynchronizedWallClockTimer, FORWARD_GLOBAL_TIMER
  from deepspeed.accelerator import get_accelerator
label_desc: Use image node_id 21 for calling a global function with example usage: _configure_defaults() without return types