code: def get_thread(self, thread_id, update_if_cached=True, raise_404=False):
          
          # see if already cached
          cached_thread = self._thread_cache.get(thread_id)
          if cached_thread:
              if update_if_cached:
                  cached_thread.update()
              return cached_thread
  
          res = self._requests_session.get(
              self._url.thread_api_url(
                  thread_id = thread_id
                  )
          )
  
          # check if thread exists
          if raise_404:
              res.raise_for_status()
          elif not res.ok:
              return None
  
          thread = Thread._from_request(self, res, thread_id)
          self._thread_cache[thread_id] = thread
  
          return thread
docs: Get a thread from 4chan via 4chan API.
  
          Args:
              thread_id (int): Thread ID
              update_if_cached (bool): Whether the thread should be updated if it's already in our cache
              raise_404 (bool): Raise an Exception if thread has 404'd
  
          Returns:
              :class:`basc_py4chan.Thread`: Thread object