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Hi @Makabata Mokgolobotho I’m not sure if I understand correctly. Do you want to do schema validation on the output of

create_df

? If so, have you looked at the https://github.com/DAGWorks-Inc/hamilton/tree/main/examples/data_quality/pandera examples? That shows how to use Pandera to do that. If the schema is dynamic, then what you have described seems reasonable. If the question is about needing to execute

request_data

to run things. Then you could look at `@config.when` and to change what that returns based on context?

Ah, yes, I think you have answered the correct question(dynamic incoming/source schema). I will checkout the links. Thanks.