src/transformers/models/vision_encoder_decoder/configuration_vision_encoder_decoder.py/VisionEncoderDecoderEncoderOnnxConfig/outputs
class VisionEncoderDecoderEncoderOnnxConfig:    def outputs(self) -> Mapping[str, Mapping[int, str]]:
        return OrderedDict({"last_hidden_state": {0: "batch", 1: "encoder_sequence"}})