## brpoplpush ##### *Description* A blocking version of `<span class="calibre12">rpoplpush</span>`, with an integral timeout in the third parameter. rpoplpush的阻塞版本，这个版本有第三个参数用于设置阻塞时间，即如果源LIST为空，那么可以阻塞监听timeout的时间，如果有元素了则执行操作。 ##### *Parameters* *Key*: srckey *Key*: dstkey *Long*: timeout ##### *Return value* *STRING* The element that was moved in case of success, `<span class="calibre12">FALSE</span>` in case of timeout.