Polaris JSON Read Writer, Unit Test, Materilization.

[swapdewalkar]

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Polars JSON read/write

Changes

Polaris JSON Read Writer, Unit Test, materializations

How I tested this

unit test and materializations

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 passed the pre-commit check & code is left cleaner/nicer than when first encountered.
• 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.

[skrawcz]

Just a question on the import -- otherwise looking good thanks!

[skrawcz]

this looks good. Will add my minor adjustment, and will merge. Thanks!