betty.datas.optional module¶
Optional data.
- final class betty.datas.optional.OptionalDefinition¶
Bases:
DataDefinition[DataClsT|None,PortableData],GenericWrap another data definition to make it optional, e.g. allow
None.- __init__(wrapped: DataDefinition[DataClsT], /)¶
- property wrapped: DataDefinition[DataClsT]¶
The wrapped, required (non-optional) data definition.