#3597 [BUG] Flyte DataclassTransformer does not properly use children of FlyteFile Issue created by ggydush ### Describe the bug I have a custom type that inherits from

FlyteFile

and am using it within a dataclass to run map tasks. What I've found, is that when converting the type, rather than use my classes

to_literal

method, it is converting the custom type to a struct. This makes it act like the normal

FlyteFile

rather than my custom type. ### Expected behavior The custom type's to_literal method should be used. ### Additional context to reproduce No response ### Screenshots No response ### Are you sure this issue hasn't been raised already? • Yes ### Have you read the Code of Conduct? • Yes flyteorg/flyte