@Override
    protected String getPeerId(final TransferLeaderRequest request) {
        return request.getLeaderId();
    }
Transfer Leader processor.

@author boyan (boyan@alibaba-inc.com)
@author jiachun.fjc
jraft-core/src/main/java/com/alipay/sofa/jraft/rpc/impl/cli/TransferLeaderRequestProcessor.java