• Interface - collection of properties, operations and signals
• Struct - typed data package
• Enum - enumeration of integer values
• Flag - enumeration with n^2 values
• List - array of primitive or complex data types
• Map - collection of primitive or complex value. Key type is defined by generator. E.g. string is recommended.
• Model - A stream of primitive or complex data values.

https://qface.readthedocs.io/en/latest/motivation.html