Add code comments linking to discussions

[seancolsen]

Small follow-up based on some of the discussions within #1109.

Checklist

• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the master branch of the repository
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I added tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no visible errors.

Developer Certificate of Origin

Developer Certificate of Origin

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Developer's Certificate of Origin 1.1

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(a) The contribution was created in whole or in part by me and I
    have the right to submit it under the open source license
    indicated in the file; or

(b) The contribution is based upon previous work that, to the best
    of my knowledge, is covered under an appropriate open source
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    work with modifications, whether created in whole or in part
    by me, under the same open source license (unless I am
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    in the file; or

(c) The contribution was provided directly to me by some other
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    are public and that a record of the contribution (including all
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