Union

The union type allows you to have multiple choices of types.

Python 3.10+Python <= 3.9

A | B | C

from typing import Union

Union[A, B, C]

Union types perform exactly as intended in exacting.

Validator

You can do more than two items for Union by hand, or use an exposed function called union() to speed up the process.

from exacting import UnionV, union

# by hand
va = UnionV(StrV(), UnionV(BoolV(), IntV()))

# union()
va = union(StrV(), BoolV(), IntV())

va.a  # str (validator)
va.b  # bool | int (validator)

va.b.a  # bool (validator)
va.b.b  # int (validator)