Verify pipeline patch

[PranY]

The verify_pipeline method covers the known edge-cases for the transforms pipeline. The design is to introduce an extensible framework to check future cases.

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[scart97]

The verify_pipeline function defined here should be instead on the Pipelines section, that is a couple of cells below. Also, it would be very helpful to include some examples, and you can add tests that it works using test_warns function from fastcore.

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[scart97]

The tests are breaking because of a problem while exporting the code from the notebooks. Please follow the instructions to fix it:

• Install nbdev: pip install nbdev --upgrade
• Install the git hooks (only need to do once): nbdev_install_git_hooks
• Before each commit run the following commands:

pip install nbdev --upgrade
nbdev_clean_nbs
nbdev_build_lib
nbdev_build_docs

• Optionally run nbdev_test_nbs to test the code

The instructions to contribute that are present on the repository at the moment are lacking, I will update them.

[mogwai]

The instructions to contribute that are present on the repository at the moment are lacking, I will update them.

Surely we ca add those the into the pre-commit hook?