Adds Pandas DF JSON materializer

[bryangalindo]

This change adds the PandasJsonWriter to_json function to the existing Pandas materializer example script and updates the materialization notebook.

Changes

• examples/pandas/materialization/notebook.ipynb
• examples/pandas/materialization/my_script.py

How I tested this

• Successfully ran unit tests for py3.11 locally using the following command in the root directory: pytest tests/
• Successfully ran unit tests for py3.7-3.10 using docker run command found here.

Notes

N/A

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]

The image in the notebook doesn't reflect what should be visualized. Otherwise the code looks great, thanks!

[bryangalindo]

The image in the notebook doesn't reflect what should be visualized. Otherwise the code looks great, thanks!

What needs to be corrected about the image below?

• a) Should there be two separate pictures, one for each materializer?
• b) Should there be one single picture, but two sets of independent DAG graphs for each materializer?
• c) or something else?

[skrawcz]

The image in the notebook doesn't reflect what should be visualized. Otherwise the code looks great, thanks!

What needs to be corrected about the image below?

• a) Should there be two separate pictures, one for each materializer?
• b) Should there be one single picture, but two sets of independent DAG graphs for each materializer?
• c) or something else?

This image looks correct! I was meaning in the notebook the image isn't this one.

The one in the notebook that's checked in looks like:

[bryangalindo]

The image in the notebook doesn't reflect what should be visualized. Otherwise the code looks great, thanks!

What needs to be corrected about the image below?

• a) Should there be two separate pictures, one for each materializer?
• b) Should there be one single picture, but two sets of independent DAG graphs for each materializer?
• c) or something else?

This image looks correct! I was meaning in the notebook the image isn't this one.

The one in the notebook that's checked in looks like:

@skrawcz I think this was an issue with my PyCharm's Jupyter Notebook integration. I updated PyCharm and ran all the cells, so the checked-in notebook visualization should be updated.

[skrawcz]