I have an Enum:

class DataType(Enum):
    TIMESTAMP = MyClass("ts")
    DATETIME = MyClass("dt")
    DATE = MyClass("date")

and a Pydantic Model with a field of the type of that Enum:

class Aggregation(BaseModel):
    field_data_type: DataType

Is there a convenient way to tell Pydantic to validate the Model field against the names of the enum rather than the values?
i.e to be able to build this Model:

agg = Aggregation(field_data_type="TIMESTAMP")