def _get_item_cache(self, item):
cache = self._item_cache<EOL>res = cache.get(item)<EOL>if res is None:<EOL><INDENT>values = self._data.get(item)<EOL>res = self._box_item_values(item, values)<EOL>cache[item] = res<EOL>res._set_as_cached(item, self)<EOL>res._is_copy = self._is_copy<EOL><DEDENT>return res<EOL>
Return the cached item, item represents a label indexer.