add sample model for testing dataspace minimal graph

[irisyngao]

Summary

add sample model for testing dataspace minimal graph

How did you test this change?

• Test(s) added
• Manual testing (please provide screenshots/recordings)
• No testing (please provide an explanation)

[changeset-bot]

🦋 Changeset detected

Latest commit: 477888c

The changes in this PR will be included in the next version bump.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 45.20%. Comparing base (eca1564) to head (477888c).
Report is 14 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3721      +/-   ##
==========================================
- Coverage   45.23%   45.20%   -0.03%     
==========================================
  Files        2192     2192              
  Lines      382024   382024              
  Branches    15840    11000    -4840     
==========================================
- Hits       172806   172712      -94     
- Misses     208444   208864     +420     
+ Partials      774      448     -326     

see 169 files with indirect coverage changes