For some services and commands, the list of parameters can become long and difficult to check and maintain.
For instance, in order to create an Amazon ML model via the CLI, you need to specify at least seven different elements: the Model ID, name, type, the model's parameters, the ID of the training data source, and the recipe name and URI (aws machinelearning create-ml-model help ).
When possible, we will use the CLI ability to read parameters from a JSON file instead of specifying them in the command line. AWS CLI also offers a way to generate a JSON template, which you can then use with the right parameters. To generate that JSON parameter file model (the JSON skeleton), simply add --generate-cli-skeleton ...
