code: def _refresh_access_token(self, refresh_token: str):
      msal_app = self._get_msal_app()
  
      response = msal_app.acquire_token_by_refresh_token(
          refresh_token=refresh_token,
          scopes=self.scopes,
      )
  
      return response
  
file_path: mindsdb/mindsdb/integrations/handlers/utilities/auth_utilities/microsoft/ms_graph_api_auth_utilities.py
imports: import json
  from flask import request
  import msal
  from ..exceptions import AuthException
  from mindsdb.integrations.handlers.utilities.api_utilities import MSGraphAPIBaseClient
  from mindsdb.utilities import log
label_desc: Use image node_id 6 for calling the MSGraphAPIAuthManager obj's underlying member method code with example usage: obj._refresh_access_token(refresh_token) and returns: response