code: def outputs(self) -> Dict[str, Dict[int, str]]:
      return OrderedDict(
          {"last_hidden_state": {0: "batch", 1: "sequence"}}
      )
  
file_path: optimum/optimum/onnx/configuration.py
imports: from collections import OrderedDict
  from typing import TYPE_CHECKING, Any, Dict, Optional
  from transformers.file_utils import TensorType
  from transformers.utils import logging
  from transformers.onnx import OnnxConfig, OnnxConfigWithPast, OnnxSeq2SeqConfigWithPast
label_desc: Use image node_id 2 for calling the EncoderOnnxConfig obj's underlying member method code with example usage: obj.outputs() and returns: OrderedDict