code: def __init__(self, aio_handle, numel_alignment, timers):
      self.free_buffer_index = []
      self.swapping_buffer_index = []
      self.ready_buffer_index = []
      self.current_buffer_index = INVALID_BUFFER_INDEX
      self.all_buffers = []
      self.aio_handle = aio_handle
      self.numel_alignment = numel_alignment
      self.max_numel = 0
      self.num_pending_swaps = 0
      self.timers = timers
      self.timer_names = set()
      self.num_elements_swapped = 0
      self.dtype = None
  
imports: import torch
  from deepspeed import comm
  from deepspeed.utils.logging import logger
  from deepspeed.runtime.swap_tensor.utils import swap_out_tensors, SwapBuffer
  from deepspeed.accelerator import get_accelerator
label_desc: Use image node_id 1 to create a new AsyncTensorSwapper object from inherited base classes: object with example: obj = AsyncTensorSwapper(aio_handle, numel_alignment, timers)