TypeError: unsupported operand type(s) for 'in': 'str' and 'EnumMeta'

[jdowni000]

Describe the bug

When building a schema from an enum, the serialize function results in an error as shown in this fio carpenter build.
Looks like it built fine through history with 0.4.2 being called from here

To reproduce

Requirements

• carpenter binary
• fio project

docker run \
    --rm \
    -e=IMAGE_TAG="0.0.1"\
    --volume /var/run/docker.sock:/var/run/docker.sock:z \
    --volume $PWD/../arcaflow-plugin-fio:/github/workspace:z \
    carpenter-img build --build

[dustinblack]

Duplicate of #83