Versioning makes our work easy. Everything has a version. If we use a specific version, we can use the features available for that particular version. It is really helpful. We can write it in JSON or YAML. It gives us a lot of flexibility. We can model and provision the third-party resources in the CloudFormation registry. We can also publish them to the AWS Partner Network. We can also work with the SAM templates. It is the most important thing I use when I work with Lambda functions. I can build the serverless application faster with the SAM templates. It’s an open-source framework. We also have a template builder. It is a command line tool. We can generate the templates. We can perform drag-and-drop actions on the builder. We can also create codes automatically.