public com.alipay.sofa.jraft.rpc.RpcRequests.ErrorResponseOrBuilder getErrorResponseOrBuilder() {
            return errorResponse_ == null ? com.alipay.sofa.jraft.rpc.RpcRequests.ErrorResponse.getDefaultInstance()
                : errorResponse_;
        }
<code>optional .jraft.ErrorResponse errorResponse = 99;</code>
jraft-core/src/main/java/com/alipay/sofa/jraft/rpc/RpcRequests.java