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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 async def get(self, key, default=None, loads_fn=None, namespace=None, _conn=None):
 """ Get a value from the cache. Returns default if not found. :param key: str :param default: obj to return when key is not found :param loads_fn: callable alternative to use as loads function :param namespace: str alternative namespace to use :param timeout: int or float in seconds specifying maximum timeout for the operations to last :returns: obj loaded :raises: :class:`asyncio.TimeoutError` if it lasts more than self.timeout """

        start = time.monotonic()
        loads = loads_fn or self._serializer.loads
        ns_key = self.build_key(key, namespace=namespace)

        value = loads(await self._get(ns_key, encoding=self.serializer.encoding, _conn=_conn))

        logger.debug("GET %s %s (%.4f)s", ns_key, value is not None, time.monotonic() - start)
        return value if value is not None else default