code: public OvhBackend serviceName_domains_domain_backends_POST(String serviceName, String domain, String ip) throws IOException {
  		String qPath = "/cdn/dedicated/{serviceName}/domains/{domain}/backends";
  		StringBuilder sb = path(qPath, serviceName, domain);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "ip", ip);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, OvhBackend.class);
  	}
docs: Add a backend IP
  
  REST: POST /cdn/dedicated/{serviceName}/domains/{domain}/backends
  @param ip [required] IP to add to backends list
  @param serviceName [required] The internal name of your CDN offer
  @param domain [required] Domain of this object