docstr: The model implementation.
docstr_tok: ["The","model","implementation","."]
code: def model(self) -> DSInferenceModelBase:
      """
      The model implementation.
      """
      return self._model
  
imports: import os
  import json
  import pickle
  from typing import Iterable, Tuple
  import torch
  import deepspeed.comm
  from deepspeed.accelerator import get_accelerator
  from deepspeed.comm.comm import init_distributed
  from .model_implementations import InferenceV2Policy
  from .logging import inference_logger
  from .ragged import DSStateManager, RaggedBatchWrapper, PlaceholderSequenceDescriptor
  from .scheduling_utils import SchedulingError, SchedulingResult
  from .model_implementations.flat_model_helpers import make_param_filename, make_metadata_filename
  from .model_implementations.inference_model_base import DSInferenceModelBase
  from .config_v2 import RaggedInferenceEngineConfig
label_desc: Use image node_id 3 for calling the InferenceEngineV2 obj's underlying member method code with example usage: obj.model() and returns: self