Bug when type checking dynamic enum creation in a metaclass #18736

from pydantic import BaseModel
from pydantic._internal._model_construction import ModelMetaclass
from enum import Enum

class OCRContentMeta(ModelMetaclass):
    def __new__(mcs, name, bases, namespace):
        cls = super().__new__(mcs, name, bases, namespace)

        # Collect all ocr_series cached_properties
        series_names = [
            name
            for name, value in namespace.items()
            if isinstance(value, cached_property)
            and hasattr(value.func, "is_ocr_series")
        ]

        # Create enum dynamically
        cls.OCRValidationKind = Enum("OCRValidationKind", {name: name for name in series_names})  #! THIS IS src/my_project/core/document.py:94

        return cls

from functools import cached_property

class OCRSeries[T]:
    ...

class OCRContent(BaseModel, metaclass=OCRContentMeta):
    text: str

    @ocr_series  # type: ignore[prop-decorator]
    @cached_property
    def numbers_float(self) -> OCRSeries[float]:
        return OCRSeries[float]([float(x) for x in self.numbers.list])

    ...