code: def initialize_from_swapped_fp16_params(
      self,
      fp16_partitions_info,
      fp16_num_elems,
      fp16_pinned_buffers,
      fp32_parameters,
  ):
      self._initialize_from_swapped_fp16_params(
          aio_handle=self.write_aio_handle,
          fp16_partitions_info=fp16_partitions_info,
          fp16_num_elems=fp16_num_elems,
          fp16_pinned_buffers=fp16_pinned_buffers,
          fp32_parameters=fp32_parameters,
      )
  
imports: from deepspeed.ops.op_builder import AsyncIOBuilder
  from deepspeed import comm
  from deepspeed.runtime.swap_tensor.constants import *
  from deepspeed.runtime.swap_tensor.utils import swap_in_tensors, swap_out_tensors, print_object
  from deepspeed.runtime.swap_tensor.async_swapper import AsyncTensorSwapper
  from deepspeed.runtime.swap_tensor.utils import get_sized_buffer
  from deepspeed.runtime.swap_tensor.optimizer_utils import OptimizerSwapper
label_desc: Use image node_id 3 for calling the PipelinedOptimizerSwapper obj's underlying member method code with example usage: obj.initialize_from_swapped_fp16_params(fp16_partitions_info, fp16_num_elems, fp16_pinned_buffers, fp32_parameters) without return types