Method insert

chain/src/storage.rs:29–35

(&self, key: &[u8], value: Vec<u8>)

    }

    fn insert(&self, key: &[u8], value: Vec<u8>) -> Result<()> {
        self.db
            .put(key, value)
            .map_err(|_| ChainError::StoragePutError(Storage::key_string(key)))?;

        Ok(())
    }

    // noop
    fn remove(&self, _key: &[u8]) -> Result<()> {