code: public ArrayList<OvhOptin> serviceName_rules_optin_GET(String serviceName) throws IOException {
  		String qPath = "/domain/{serviceName}/rules/optin";
  		StringBuilder sb = path(qPath, serviceName);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, t5);
  	}
docs: Retrieve optin rule
  
  REST: GET /domain/{serviceName}/rules/optin
  @param serviceName [required] The internal name of your domain