Types

String: Will return up to 255 characters
Integer
Reference: Essentially an integer field, but specifying the ID of another model.
ID: An integer, usually that matches an existing record
Text: A large text field
Email: A valided email i.e. person@domain.com
Color: A color hex i.e. #FFFFFF
Boolean: A true/false value, may be presented as true/false or 1/0
JSON: An encoded JSON string
Array: A key/value array or object
Country: A list of countries, will normally pass back the string name i.e. United Kingdom
Decimal: Maximum of 15,2 decimal number
Timestamp: A unix timestamp representation of a date and time.
User Agent: A user agent string i.e. Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7
HTML: Contains a string of HTML, possibly with template tags embedded using {{tag}} syntax.