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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:
 def get(self, key, ttl=0, quiet=None, replica=False, no_format=False):
 """Obtain an object stored in Couchbase by given key. :param string key: The key to fetch. The type of key is the same as mentioned in :meth:`upsert` :param int ttl: If specified, indicates that the key's expiration time should be *modified* when retrieving the value. :param boolean quiet: causes `get` to return None instead of raising an exception when the key is not found. It defaults to the value set by :attr:`~quiet` on the instance. In `quiet` mode, the error may still be obtained by inspecting the :attr:`~.Result.rc` attribute of the :class:`.Result` object, or checking :attr:`.Result.success`. Note that the default value is `None`, which means to use the :attr:`quiet`. If it is a boolean (i.e. `True` or `False`) it will override the `couchbase.bucket.Bucket`-level :attr:`quiet` attribute. :param bool replica: Whether to fetch this key from a replica rather than querying the master server. This is primarily useful when operations with the master fail (possibly due to a configuration change). It should normally be used in an exception handler like so Using the ``replica`` option:: try: res = c.get("key", quiet=True) # suppress not-found errors catch CouchbaseError: res = c.get("key", replica=True, quiet=True) :param bool no_format: If set to ``True``, then the value will always be delivered in the :class:`~couchbase.result.Result` object as being of :data:`~couchbase.FMT_BYTES`. This is a item-local equivalent of using the :attr:`data_passthrough` option :raise: :exc:`.NotFoundError` if the key does not exist :raise: :exc:`.CouchbaseNetworkError` :raise: :exc:`.ValueFormatError` if the value cannot be deserialized with chosen decoder, e.g. if you try to retreive an object stored with an unrecognized format :return: A :class:`~.Result` object Simple get:: value = cb.get('key').value Get multiple values:: cb.get_multi(['foo', 'bar']) Inspect the flags:: rv = cb.get("key") value, flags, cas = rv.value, rv.flags, rv.cas Update the expiration time:: rv = cb.get("key", ttl=10) # Expires in ten seconds .. seealso:: :meth:`get_multi` """


        return _Base.get(self, key, ttl=ttl, quiet=quiet,
                         replica=replica, no_format=no_format)