This can be placed above the Globals. Notice that we supply a Default value. This will be replaced with a real value in the
samconfig.toml file. We also need to add a section for Environment | Variables to the Globals section. We create an internal reference. We will not need to use that reference in code. The environment variable is made available to the function using the CLOUDINARY_URL as a key. The Cloudinary SDK provides a
.config function that will pull out all the credentials contained in the CLOUDINARY_URL and make those available to the SDK functions: cloud_name, api_secret, and api_key. We won't need to reference any of these credentials by name in the function code.