code: def __init__(
      self,
      swap_config,
      aio_config,
      base_folder,
      optimizer,
      largest_numel,
      device,
      dtype,
      timers,
  ):
      self.swap_config = swap_config
      self.aio_config = aio_config
  
      # NVMe swap management
      self.swap_params_info = {}
      self.swap_element_size = torch.tensor(
          [], dtype=dtype
      ).element_size()
      self.swap_folder = os.path.join(
          base_folder, "optimizer", f"rank{dist.get_rank()}"
      )
      os.makedirs(self.swap_folder, exist_ok=True)
  
      self.optimizer = optimizer
  
      # Read/Write alignment for each thread during Intra-request parallelism
      self.min_aio_bytes = max(
          MIN_AIO_BYTES, aio_config[AIO_BLOCK_SIZE]
      )
      self.aligned_bytes = (
          AIO_ALIGNED_BYTES * aio_config[AIO_THREAD_COUNT]
      )
      self.numel_alignment = (
          self.aligned_bytes // self.swap_element_size
      )
  
      # Swap buffer management
      self.largest_numel = self._io_aligned_numel(largest_numel)
      self.dtype = dtype
      self.swap_buffer_manager = SwapBufferManager(
          num_elems=self.largest_numel,
          count=swap_config.buffer_count,
          dtype=dtype,
      )
  
      # Timers
      self.timers = timers
      self.timer_names = set()
  
      # Print exclusion list
      self.print_exclude_list = [
          "optimizer",
          "swap_buffer_manager",
          "swap_params_info",
          "timers",
          "timer_names",
      ]
  
imports: import os
  import torch
  from deepspeed import comm
  from deepspeed.utils.logging import logger
  from deepspeed.runtime.swap_tensor.constants import *
  from deepspeed.runtime.swap_tensor.utils import swap_in_tensors, swap_out_tensors, MIN_AIO_BYTES, AIO_ALIGNED_BYTES, get_sized_buffers
  from deepspeed.runtime.swap_tensor.utils import SwapBufferManager, SwapBufferPool
label_desc: Use image node_id 1 to create a new OptimizerSwapper object from inherited base classes: object with example: obj = OptimizerSwapper(swap_config, aio_config, base_folder, optimizer, largest_numel, device, dtype, timers)