class_docstr: Connects to the Tableau Server Instance and allows to communicate with it.
  
  Can be used as a context manager: automatically authenticates the connection
  when opened and signs out when closed.
  
  .. seealso:: https://tableau.github.io/server-client-python/docs/
  
  :param site_id: The id of the site where the workbook belongs to.
      It will connect to the default site if you don't provide an id.
  :param tableau_conn_id: The :ref:`Tableau Connection id <howto/connection:tableau>`
      containing the credentials to authenticate to the Tableau Server.
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code: def __exit__(self, exc_type: Any, exc_val: Any, exc_tb: Any) -> None:
      self.server.auth.sign_out()
  
imports: from __future__ import annotations
  import time
  import warnings
  from enum import Enum
  from typing import TYPE_CHECKING, Any
  from tableauserverclient import Pager, PersonalAccessTokenAuth, Server, TableauAuth
  from airflow.exceptions import AirflowException, AirflowProviderDeprecationWarning
  from airflow.hooks.base import BaseHook
label_desc: Use image node_id 3 for calling the TableauHook obj's underlying member method code with example usage: obj.__exit__(exc_type, exc_val, exc_tb) without return types