Values.TemplateSourcetype nonrec t = {templateArn : TemplateArn.t option;The Amazon Resource Name (ARN) of the template.
*)templateData : TemplateData.t option;An object that defines the values to use for message variables in the template. This object is a set of key-value pairs. Each key defines a message variable in the template. The corresponding value defines the value to use for that variable.
*)}