@Override
            RemoveRaftVoterRequest.Builder createRequest(int timeoutMs) {
                return new RemoveRaftVoterRequest.Builder(
                    new RemoveRaftVoterRequestData().
                        setVoterId(voterId) .
                        setVoterDirectoryId(voterDirectoryId));
            }
Returns the broker id pertaining to the given resource, or null if the resource is not associated
with a particular broker.
clients/src/main/java/org/apache/kafka/clients/admin/KafkaAdminClient.java