pub fn retrieve_produced_update(
        &self,
        previous_root: H256,
    ) -> Result<Option<SignedUpdate>, DbError> {
        self.retrieve_keyed_decodable(UPDATER_PRODUCED_UPDATE, &previous_root)
    }
/// Retrieve a pending update from the DB (if one exists).
Retrieve a pending update from the DB (if one exists).
Retrieve a pending update from the DB ( if one exists ) .
pub fn retrieve_produced_update(
        &self,
        previous_root: H256,
    ) -> Result<Option<SignedUpdate>, DbError> {
        self.retrieve_keyed_decodable(UPDATER_PRODUCED_UPDATE, &previous_root)
    }
pub fn retrieve_produced_update ( & self , previous_root : H256 , ) -> Result < Option < SignedUpdate > , DbError > { self . retrieve_keyed_decodable ( UPDATER_PRODUCED_UPDATE , & previous_root ) }
Retrieve a pending update from the DB (if one exists).
Retrieve a pending update from the DB ( if one exists ) .
&self
previous_root
H256
&self
previous_root
H256