chore: import upstream snapshot with attribution

.github/pull_request_template.md

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+## Summary
+
+> 🎯 **Purpose**: Describe the objective of your changes in this Pull-Request.
+>
+> 📜 **Example Usage**: If adding new functionality, strive to provide a minimal working example (MWE) that demonstrates end-to-end usage and output of your new methods. If creating a MWE is not feasible, a conceptual code snippet showcasing the usage is also appreciated. Ensure that the code provided can be copied, pasted, and run without modifications.
+
+**[ ✏️ Write your summary here. ]**
+
+```python
+# Example code snippet
+
+# Necessary Imports:
+from my_module import my_new_function
+
+# Setup if needed (e.g., data loading, model instantiation):
+a = 20
+b = 22
+
+# Usage and Output:
+result = my_new_function(a, b)
+# 42
+
+# ---- Your code below ----
+# [Replace the example above with your own code, ensuring it is executable and demonstrates your feature or fix.]
+[your_uncommented_runnable_code_here]
+# [your_output_here_as_a_comment]
+```
+
+## Impact
+
+> 🌐 Areas Affected: Enumerate modules, functions, or documentation impacted by your code.
+>
+> 👥 Who’s Affected: Mention who might be impacted (if applicable).
+
+**Screenshots**
+
+> 📸 If your changes modify documentation or a tutorial notebook, please include screenshots or GIFs showing the rendered outputs for a quicker initial review, highlighting the main changes.
+
+
+## Testing
+
+> 🔍 Testing Done: Outline what kinds of tests you performed.
+>
+> 🔗 Test Case Link: Directly link to the most end-to-end check of your new functionality.
+
+**Unaddressed Cases**
+
+> It's ok if your unit tests are not yet
+> comprehensive when you first open the PR,
+> we can revisit them later!
+>
+> ⚠️ Mention any aspects of testing that have *not* been covered, and why.
+
+-
+
+## Links to Relevant Issues or Conversations
+
+> 🔗 What Git or Slack items (Issues, threads, etc) that are specifically related to
+> this work? Please link them here.
+
+-
+
+## References
+
+> 📚 Include any extra information that may be helpful to reviewers of your
+> Pull-Request here (e.g. relevant URLs or Wiki pages that could help give
+> background information). 
+>
+> Share links, docs, or sources that facilitated your changes.
+>
+> If relevant, please include additional code snippets
+> (and their outputs/return values) showing alternative ways to use your newly added methods.
+
+```python
+[additional code snippets and explanations]
+```
+
+-
+
+## Reviewer Notes
+> 💡 Include any specific points for the reviewer to consider during their review.
+