Some scaffolding

[elijahbenizzy]

[Short description explaining the high-level reason for the pull request]

Changes

Testing

Notes

Checklist

• [ ] PR has an informative and human-readable title (this will be pulled into the release notes)
• [ ] Changes are limited to a single goal (no scope creep)
• [ ] Code can be automatically merged (no conflicts)
• [ ] Code passed the pre-commit check & code is left cleaner/nicer than when first encountered.
• [ ] Passes all existing automated tests
• [ ] Any change in functionality is tested
• [ ] New functions are documented (with a description, list of inputs, and expected output)
• [ ] Placeholder code is flagged / future TODOs are captured in comments
• [ ] Project documentation has been updated if adding/changing functionality.
• [ ] Reviewers requested with the Reviewers tool :arrow_right:

Testing checklist

Python - local testing

• [ ] python 3.6
• [ ] python 3.7

[elijahbenizzy]

Another TODO -- support data quality for dataframes. Some ideas:

1. Add a output argument to these, allowing us to extract an item in the dataframe, etc... E.G. anything sliceable
2. output could also apply to a specific column in extract_columns
3. Add a schema argument, allowing us to run on a dataframe (E.G. column -> type mapping). Note this is redundant with datatype as well...