public static String getStatus(final LoadBalancer.Subchannel subchannel) {
        return getAttributeValue(subchannel, STATSU_KEY, "true");
    }
Get status.

@param subchannel subchannel
@return String status
shenyu-plugin/shenyu-plugin-proxy/shenyu-plugin-rpc/shenyu-plugin-grpc/src/main/java/org/apache/shenyu/plugin/grpc/loadbalance/SubChannels.java