code: def write(self, obj):
          
          if self.verbose:
              self._warnings("cache miss for {0}", self._cache_id_desc())
          if self._start_time is not None:
              elapsed = get_time() - self._start_time
          else:
              elapsed = None
          out = self._write(self._cache_id_obj, elapsed, obj)
          self._out = out
          self.force_to_disk(self.get_size() > self._ram_quota)
          self._last_access = get_time()
          return self._read(out)[2]
docs: Writes the given object to the cache file as pickle. The cache file with
             its path is created if needed.