Function generate_block_templates 

pub async fn generate_block_templates<Mempool, State, ReadState, Tip, BlockVerifierRouter, SyncStatus, AddressBook>(
    rpc: RpcImpl<Mempool, State, ReadState, Tip, AddressBook, BlockVerifierRouter, SyncStatus>,
    template_sender: Sender<Option<Arc<Block>>>,
) -> Result<(), Report>
where
    Mempool: Service<Request, Response = Response, Error = BoxError> + Clone + Send + Sync + 'static,
    Mempool::Future: Send,
    State: Service<Request, Response = Response, Error = BoxError> + Clone + Send + Sync + 'static,
    <State as Service<Request>>::Future: Send,
    ReadState: Service<ReadRequest, Response = ReadResponse, Error = BoxError> + Clone + Send + Sync + 'static,
    <ReadState as Service<ReadRequest>>::Future: Send,
    Tip: ChainTip + Clone + Send + Sync + 'static,
    BlockVerifierRouter: Service<Request, Response = Hash, Error = BoxError> + Clone + Send + Sync + 'static,
    <BlockVerifierRouter as Service<Request>>::Future: Send,
    SyncStatus: ChainSyncStatus + Clone + Send + Sync + 'static,
    AddressBook: AddressBookPeers + Clone + Send + Sync + 'static,

Generates block templates using rpc, and sends them to mining threads using template_sender.