# Model configuration
Model properties can be set while creating a new model or after a model has been created.
The following examples are valid:
let DomainRobotModels = require("@internetx/js-domainrobot-sdk").DomainRobotModels;
let timePeriod = new DomainRobotModels.TimePeriod({
unit: 'MONTH',
period: 12
});
let certificateModel = new Certificate({
lifetime: timePeriod,
product: "BASIC_SSL"
});
let DomainRobotModels = require("@internetx/js-domainrobot-sdk").DomainRobotModels;
let certificateModel = new DomainRobotModels.Certificate();
let timePeriod = new DomainRobotModels.TimePeriod({
unit: 'MONTH',
period: 12
});
certificateModel->setLifetime(timePeriod);
certificateModel->setProduct("BASIC_SSL");