pub fn decode<BH, BB, E>(block: Result<BlockTuple, E>) -> Result<(BH, BB)>where BH: FullBlockHeader + Value, BB: FullBlockBody<OmmerHeader = BH>, E: From<E2sError> + Error + Send + Sync + 'static,
Extracts a (header, body) pair from BlockTuple.
(header, body)
BlockTuple