Array of objects representing the options of the list, with value
as the key and the option as the value. At least two options are required.
The model that the data attribute belongs to.
The readable description you see in the UI for the attribute.
{ "data_type": "options", "options": [ { … }, { … } ], "name": "My Data Attribute", "model": "contact", "description": "My Data Attribute Description", "messenger_writable": false }