public RunnerBuilder rpcEndpointService(final RpcEndpointServiceImpl rpcEndpointService) {
    this.rpcEndpointServiceImpl = rpcEndpointService;
    return this;
  }
Add Rpc endpoint service.

@param rpcEndpointService the rpc endpoint service
@return the runner builder
app/src/main/java/org/hyperledger/besu/RunnerBuilder.java