code: public void serviceName_modem_duplicatePortMappingConfig_POST(String serviceName, String accessName) throws IOException {
  		String qPath = "/xdsl/{serviceName}/modem/duplicatePortMappingConfig";
  		StringBuilder sb = path(qPath, serviceName);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "accessName", accessName);
  		exec(qPath, "POST", sb.toString(), o);
  	}
docs: Remove all the current port mapping rules and set the same config as the access given in parameters
  
  REST: POST /xdsl/{serviceName}/modem/duplicatePortMappingConfig
  @param accessName [required] The access name with the config you want to duplicate
  @param serviceName [required] The internal name of your XDSL offer
  @deprecated