Function rpc_bootstrap 

pub fn rpc_bootstrap(
    node: &Node,
    identity_keypair: &Arc<Keypair>,
    ledger_path: &Path,
    full_snapshot_archives_dir: &Path,
    incremental_snapshot_archives_dir: &Path,
    vote_account: &Pubkey,
    authorized_voter_keypairs: Arc<RwLock<Vec<Arc<Keypair>>>>,
    cluster_entrypoints: &[ContactInfo],
    validator_config: &mut ValidatorConfig,
    bootstrap_config: RpcBootstrapConfig,
    do_port_check: bool,
    use_progress_bar: bool,
    maximum_local_snapshot_age: Slot,
    should_check_duplicate_instance: bool,
    start_progress: &Arc<RwLock<ValidatorStartProgress>>,
    minimal_snapshot_download_speed: f32,
    maximum_snapshot_download_abort: u64,
    socket_addr_space: SocketAddrSpace,
)