Function block_on_async

pub fn block_on_async<T, F>(f: F) -> Result<T>
where
    F: Future<Output = T> + Send + 'static,
    T: Send + 'static,

Please only use this method because you are calling from (optionally first as async) to sync then to a async a terrible hack to call async from sync by:

TODO(discord9): find a better way

1. using a cached runtime
2. block on that runtime