"""models."""

from typing import Any

from pydantic import BaseModel, ConfigDict, field_validator


class Model(BaseModel):
    model_config = ConfigDict(frozen=True)

    @field_validator("*", mode="before")
    @classmethod
    def apply_normalization(cls, value: Any) -> Any:
        if isinstance(value, str):
            return value.strip() or None

        return value