Checkpoint
One last thing before we move on. Same surface as a write step — but the lesson doesn't complete until this passes.
Checkpoint: write train_test_receipt(config) so it flags label leakage and repeated ids across train and test.
One last thing before we move on. Same surface as a write step — but the lesson doesn't complete until this passes.
Checkpoint: write train_test_receipt(config) so it flags label leakage and repeated ids across train and test.