How to get value or name of enum from SQLAlchemy result query?

# model.py
from dataclasses import dataclass, field
from enum import Enum, auto


class GenderEnum(Enum):
    p = auto()
    l = auto()


@dataclass
class ActivityLevel:
    id: int = field(init=False)  # NOTE add `repr=False` if trying to display instances
    name: str
    gender: GenderEnum

# orm.py
from sqlalchemy import Column, Enum, ForeignKey, Integer, String, Table
from sqlalchemy.orm import registry

from .model import ActivityLevel

mapper_registry = registry()

activity_level = Table(
    "activity_level",
    mapper_registry.metadata,
    Column("id", Integer, primary_key=True),
    Column("name", String(100), nullable=False),
    Column("gender", Enum(GenderEnum), nullable=False),
)


def start_mapper():
    mapper_registry.map_imperatively(ActivityLevel, activity_level)

# serialiser.py
from json import JSONDecoder, JSONEncoder

from .model import ActivityLevel, GenderEnum


class ActivityLevelJSONEncoder(JSONEncoder):
    def default(self, o):
        try:  # NOTE duck typing and asking for forgiveness not permission
            return {
                "name": o.name,
                "gender": o.gender.name,
            }
        except AttributeError:
            return super().default(self, o)


class ActivityLevelJSONDecoder(JSONDecoder):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, object_hook=self._object_hook, **kwargs)

    @staticmethod
    def _object_hook(d: dict) -> ActivityLevel:
        return ActivityLevel(
            name=d["name"],
            gender=GenderEnum[d["gender"]],
        )