class_docstr: Initialize a new Inference Client.
  
  [`InferenceClient`] aims to provide a unified experience to perform inference. The client can be used
  seamlessly with either the (free) Inference API or self-hosted Inference Endpoints.
  
  Args:
      model (`str`, `optional`):
          The model to run inference with. Can be a model id hosted on the Hugging Face Hub, e.g. `bigcode/starcoder`
          or a URL to a deployed Inference Endpoint. Defaults to None, in which case a recommended model is
          automatically selected for the task.
      token (`str`, *optional*):
          Hugging Face token. Will default to the locally saved token. Pass `token=False` if you don't want to send
          your token to the server.
      timeout (`float`, `optional`):
          The maximum number of seconds to wait for a response from the server. Loading a new model in Inference
          API can take up to several minutes. Defaults to None, meaning it will loop until the server is available.
      headers (`Dict[str, str]`, `optional`):
          Additional headers to send to the server. By default only the authorization and user-agent headers are sent.
          Values in this dictionary will override the default values.
      cookies (`Dict[str, str]`, `optional`):
          Additional cookies to send to the server.
docstr: Retrieve the answer to a question from a given text.
  
  Args:
      question (`str`):
          Question to be answered.
      context (`str`):
          The context of the question.
      model (`str`):
          The model to use for the question answering task. Can be a model ID hosted on the Hugging Face Hub or a URL to
          a deployed Inference Endpoint.
  
  Returns:
      `Dict`: a dictionary of question answering output containing the score, start index, end index, and answer.
  
  Raises:
      [`InferenceTimeoutError`]:
          If the model is unavailable or the request times out.
      `HTTPError`:
          If the request fails with an HTTP error status code other than HTTP 503.
  
  Example:
  ```py
  >>> from huggingface_hub import InferenceClient
  >>> client = InferenceClient()
  >>> client.question_answering(question="What's my name?", context="My name is Clara and I live in Berkeley.")
  {'score': 0.9326562285423279, 'start': 11, 'end': 16, 'answer': 'Clara'}
  ```
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code: def question_answering(
      self, question: str, context: str, *, model: Optional[str] = None
  ) -> QuestionAnsweringOutput:
      """
      Retrieve the answer to a question from a given text.
  
      Args:
          question (`str`):
              Question to be answered.
          context (`str`):
              The context of the question.
          model (`str`):
              The model to use for the question answering task. Can be a model ID hosted on the Hugging Face Hub or a URL to
              a deployed Inference Endpoint.
  
      Returns:
          `Dict`: a dictionary of question answering output containing the score, start index, end index, and answer.
  
      Raises:
          [`InferenceTimeoutError`]:
              If the model is unavailable or the request times out.
          `HTTPError`:
              If the request fails with an HTTP error status code other than HTTP 503.
  
      Example:
      ```py
      >>> from huggingface_hub import InferenceClient
      >>> client = InferenceClient()
      >>> client.question_answering(question="What's my name?", context="My name is Clara and I live in Berkeley.")
      {'score': 0.9326562285423279, 'start': 11, 'end': 16, 'answer': 'Clara'}
      ```
      """
  
      payload: Dict[str, Any] = {
          "question": question,
          "context": context,
      }
      response = self.post(
          json=payload,
          model=model,
          task="question-answering",
      )
      return _bytes_to_dict(response)
  
imports: import logging
  import time
  import warnings
  from dataclasses import asdict
  from typing import TYPE_CHECKING, Any, Dict, Iterable, List, Literal, Optional, Union, overload
  from requests import HTTPError
  from requests.structures import CaseInsensitiveDict
  from huggingface_hub.constants import ALL_INFERENCE_API_FRAMEWORKS, INFERENCE_ENDPOINT, MAIN_INFERENCE_API_FRAMEWORKS
  from huggingface_hub.inference._common import TASKS_EXPECTING_IMAGES, ContentT, InferenceTimeoutError, ModelStatus, _b64_encode, _b64_to_image, _bytes_to_dict, _bytes_to_image, _bytes_to_list, _fetch_recommended_models, _import_numpy, _is_tgi_server, _open_as_binary, _set_as_non_tgi, _stream_text_generation_response
  from huggingface_hub.inference._text_generation import TextGenerationParameters, TextGenerationRequest, TextGenerationResponse, TextGenerationStreamResponse, raise_text_generation_error
  from huggingface_hub.inference._types import ClassificationOutput, ConversationalOutput, FillMaskOutput, ImageSegmentationOutput, ObjectDetectionOutput, QuestionAnsweringOutput, TableQuestionAnsweringOutput, TokenClassificationOutput
  from huggingface_hub.utils import BadRequestError, build_hf_headers, get_session, hf_raise_for_status
label_desc: Use image node_id 19 for calling the InferenceClient obj's underlying member method code with example usage: obj.question_answering(question, context) and returns: _bytes_to_dict