Add scope to client docs

[sderickson]

Adds the "scope" attribute to the exported clients, so that they appear in the docstrings of routes that have a scope defined.

After running:

python generate_base_client.py
tox -e docs

I checked the html build files and scopes are showing up as expected.

[codecov]

Codecov Report

Merging #408 (97eb2f4) into main (62e49c1) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #408   +/-   ##
=======================================
  Coverage   64.23%   64.23%           
=======================================
  Files          30       30           
  Lines       51451    51451           
  Branches     5729     5729           
=======================================
  Hits        33049    33049           
  Misses      18244    18244           
  Partials      158      158           

Flag	Coverage Δ
integration	64.14% <ø> (ø)
unit	63.65% <ø> (ø)

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[sderickson]

Pulled in stone 3.3.1 and ran the same manual test, still works.