refactor(model): Preprocess data multi split

Why this PR

Make dataprocess in lighting training can preprocess multi split

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[ ] PR should be in the Naming convention
[ ] Assign yourself in to Assigneees
[ ] Tag related issues
[ ] Constants name should be ALL_CAPITAL, function name should be snake_case, and class name should be CamelCase
[ ] complex function/algorithm should have Docstring
[ ] 1 PR should not have more than 200 lines changes (Exception for test files). If more than that please open multiple PRs
[ ] At least PR reviewer must come from the task's team (model, eval, data)