ENH: Add dedup api doc

[Hank0626]

What do these changes do?

Related issue number

Fixes #xxxx

Check code requirements

• [ ] tests added / passed (if needed)
• [ ] Ensure all linting tests pass

[codecov[bot]]

Codecov Report

Merging #608 (1cc79c1) into main (6b7a33d) will increase coverage by 10.56%. The diff coverage is n/a.

@@             Coverage Diff             @@
##             main     #608       +/-   ##
===========================================
+ Coverage   82.82%   93.39%   +10.56%     
===========================================
  Files        1011     1011               
  Lines       78728    78728               
  Branches    16358    16358               
===========================================
+ Hits        65207    73526     +8319     
+ Misses      11529     3538     -7991     
+ Partials     1992     1664      -328     

Flag	Coverage Δ
unittests	93.28% <ø> (+10.56%)	:arrow_up:

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see 391 files with indirect coverage changes