code: def _log_images(self):
          
          from time import time
          from acorn.logging.database import record        
          entry = {
              "m": "plot",
              "a": None,
              "s": time(),
              "r": thumb_uuid,
          }
          
          #See if we can match the executed cell's code up with one that we
          #intercepted in the past..
          code = self.shell.user_ns.get("i_{0:d}".format(self.cellid))
          cellid = self._find_cellid(code)
          if cellid is None:
              cellid = self.cellid
          #Store the contents of the cell so they are up to date for next time.
          self.cellids[cellid] = code
  
          from acorn import msg
          record("__main__.{}".format(cellid), entry)
          msg.info(entry, 1)
docs: Creates database logs for all the image file names in the global
          variable :data:`thumb_uuid`.