rberga06.utils.types.SupportsPydanticV2

class rberga06.utils.types.SupportsPydanticV2(*args, **kwargs)

Bases: Protocol[_T]

A typing.Protocol that makes it easy to implement pydantic v2 support.

Example:

>>> class Foo(SupportsPydanticV2[Any]):
...     def __init__(self, value: str, /) -> None:
...         self.value = value
...
...     @override
...     def __repr__(self) -> str:
...         return f"<Foo: {self.value!r}>"
...
...     @classmethod
...     @override
...     def validate(cls, /, value: Any) -> Self:
...         if isinstance(value, str):
...             return cls(value)
...         return cls(repr(value))
...
>>> class Model(pydantic.BaseModel):
...     answer: Foo  # you can use Foo as a pydantic field type
...
>>> Foo("42")
<Foo: '42'>
>>> # useful when outside a pydantic model
>>> Foo.validate(42)
<Foo: '42'>
>>> # Foo.validate() is called when validating the pydantic model
>>> Model(answer=42)
Model(answer=<Foo: '42'>)
>>> Model(answer="42")
Model(answer=<Foo: '42'>)
>>> Model.model_validate({"answer": 42})
Model(answer=<Foo: '42'>)

__init__(*args, **kwargs)

Methods

__init__(*args, **kwargs)
validate(obj, /)	Instantiate this class from obj.

classmethod validate(obj: _T, /) → Self

Instantiate this class from obj.