code: def raw_conf_process_pyramid(raw_conf):
      
      return BufferedTilePyramid(
          raw_conf["pyramid"]["grid"],
          metatiling=raw_conf["pyramid"].get("metatiling", 1),
          pixelbuffer=raw_conf["pyramid"].get("pixelbuffer", 0)
      )
docs: Loads the process pyramid of a raw configuration.
  
      Parameters
      ----------
      raw_conf : dict
          Raw mapchete configuration as dictionary.
  
      Returns
      -------
      BufferedTilePyramid