code: def save_label(
      self,
      image_id: str,
      label_filename: str,
      label_tag: str,
      label_info: Dict[str, Any],
  ) -> str:
      aiaa_model_name = label_info.get("model", "NoModel")
      label_names = label_info.get("params", {}).get("label_names", {})
  
      # save the nii.gz segmentation into Xnat
      project, subject, experiment, scan = self._id_to_fields(image_id)
      nameAtXnat = f"pat_{subject}_exp_{experiment}_S_{scan}_AI_{aiaa_model_name}.nii.gz"
      self._request_put_file(
          experiment,
          scan,
          name_at_xnat=nameAtXnat,
          file2send=label_filename,
          ai_model_name=aiaa_model_name,
      )
      # convert nii to dcm seg and upload to Xnat
      if label_filename.endswith(".nii") or label_filename.endswith(
          ".nii.gz"
      ):
          series_dir = self._download_image(image_id)
          tmp_dcm_segpath = self.__convert_nifti_to_dcmseg(
              series_dir, label_filename, aiaa_model_name, label_names
          )
          self.__upload_assessment(
              aiaa_model_name, image_id, tmp_dcm_segpath, "SEG"
          )
  
      return image_id
  
imports: import io
  import logging
  import os
  import pathlib
  import shutil
  import time
  from typing import Any, Dict, List, Optional
  from urllib.parse import quote_plus
  from xml.etree import ElementTree
  import requests
  from requests.auth import HTTPBasicAuth
  from monailabel.datastore.utils.convert import nifti_to_dicom_seg
  from monailabel.interfaces.datastore import Datastore
  from monailabel.utils.others.generic import md5_digest
label_desc: Use image node_id 22 for calling the XNATDatastore obj's underlying member method code with example usage: obj.save_label(image_id, label_filename, label_tag, label_info) and returns: image_id