Description: The template parameter type in AWS CloudFormation refers to the definition of the data type that a parameter can accept within an infrastructure-as-code template. These parameters allow users to customize the configuration of their resources at the time of creating or updating a stack. Parameter types can include strings, numbers, lists of values, objects, and more, providing flexibility and adaptability to templates. When defining a parameter, its type can be specified, along with additional constraints such as default values, descriptions, and selection options. This not only enhances the usability of templates but also helps prevent errors by ensuring that the entered values are of the correct type. In summary, the template parameter type is essential for user input customization and validation in the context of cloud resource management.