Feature Request - Tell Cache to Send for Original Data Again From Client Side

We need some way for the client to be able to tell Tscached to refresh the cache (we have experienced a few errors) for some metric or even a particular query. Currently it seems that the only way to get Tscached to refresh the cache is to restart tscached. For us to be able to use this in a large/significant deployment the client would need to be able to tell tscached to refresh.