Pydantic Union Example

example.py

from typing import List, Union
from pydantic import BaseModel
from pydantic.dataclasses import dataclass


class MyConfig:
    validate_assignment = True


@dataclass(config=MyConfig)
class Person:
    title: str = 'Billy'


@dataclass(config=MyConfig)
class Robot:
    title: int = 1234


@dataclass(config=MyConfig)
class Fuku:
    sitle: str = 'Haha'


@dataclass(config=MyConfig)
class Actors:
    participants: List[Union[Person, Robot, Fuku]] = None


print(Actors(participants=[Robot(title=1234567), Person(title="Stinky"), Robot(title=1234567), Fuku(sitle='did')]))