redis_rocksdb 0.3.9

rust implement structure kv(key/value) embedded database, storage by rocksdb
Documentation 
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use crate::{Bytes, RrError};

pub trait KeyValue {
	fn get<K: Bytes, V: Bytes>(&self, key: &K) -> Result<Option<Vec<u8>>, RrError>;
	fn put<K: Bytes, V: Bytes>(&mut self, key: &K, value: &V) -> Result<(), RrError>;
}