Inline convert to `Prefixed` about hdl21 HOT 3 CLOSED

from enum import Enum
from typing import Union
from decimal import Decimal
from pydantic import BaseModel, ValidationError, validator
from pydantic.dataclasses import dataclass


class WhatWasIt(Enum):
    STR = 0
    INT = 1
    FLOAT = 2
    DEC = 3
    NONE = 4

class TheIdea(BaseModel):
    number: Decimal
    what_was_it: WhatWasIt = WhatWasIt.STR

    @classmethod
    def __get_validators__(cls):
        yield cls.validate

    @classmethod
    def validate(cls, v: Union["TheIdea", str, int, float, Decimal]) -> "TheIdea":
        if isinstance(v, TheIdea):
            return v  # Done validating
        if isinstance(v, str):
            return TheIdea(number=Decimal(v), what_was_it=WhatWasIt.STR)
        if isinstance(v, int):
            return TheIdea(number=Decimal(v), what_was_it=WhatWasIt.INT)
        if isinstance(v, float):
            return TheIdea(number=Decimal(v), what_was_it=WhatWasIt.FLOAT)
        if isinstance(v, Decimal):
            return TheIdea(number=v, what_was_it=WhatWasIt.DEC)

        raise ValueError("???")


@dataclass
class ParentDataClass:
    stuff: TheIdea


models = [
    ParentDataClass(stuff=TheIdea(number=Decimal("1.0"), what_was_it=WhatWasIt.NONE)),
    ParentDataClass(stuff="1e-3"),
    ParentDataClass(stuff=3),
    ParentDataClass(stuff=3.14159),
    ParentDataClass(stuff=Decimal(0)),
]

[print(m) for m in models]