code: public OvhLoadBalancingTask loadBalancing_serviceName_backend_POST(String serviceName, String ipBackend, OvhLoadBalancingBackendProbeEnum probe, Long weight) throws IOException {
  		String qPath = "/ip/loadBalancing/{serviceName}/backend";
  		StringBuilder sb = path(qPath, serviceName);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "ipBackend", ipBackend);
  		addBody(o, "probe", probe);
  		addBody(o, "weight", weight);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, OvhLoadBalancingTask.class);
  	}
docs: Add a new backend on your IP load balancing
  
  REST: POST /ip/loadBalancing/{serviceName}/backend
  @param weight [required] Weight of the backend on its zone, must be between 1 and 100
  @param probe [required] The type of probe used
  @param ipBackend [required] IP of your backend
  @param serviceName [required] The internal name of your IP load balancing