code: def get_cuda_rng_tracker() -> CudaRNGStatesTracker:
      """Get cuda rng tracker."""
      return _CUDA_RNG_STATE_TRACKER
  
imports: import contextlib
  from typing import Dict, Iterator, Set, Union
  import torch
  from torch.cuda import _lazy_call
  from torch.utils.checkpoint import detach_variable
  from .initialize import get_data_parallel_rank, get_model_parallel_rank
label_desc: Use image node_id 2 for calling a global function with example usage: get_cuda_rng_tracker() and returns: _CUDA_RNG_STATE_TRACKER