[type:refactor]api doc client annotation add generated attribute

[847850277]

api doc client annotation add generated attribute to control whether it is necessary to generate in admin.

Make sure that:

• You have read the contribution guidelines.
• You submit test cases (unit or integration tests) that back your changes.
• Your local test passed ./mvnw clean install -Dmaven.javadoc.skip=true.

[codecov-commenter]

Codecov Report

Merging #4845 (3507ed6) into master (4ea79fa) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master    #4845      +/-   ##
============================================
- Coverage     64.59%   64.58%   -0.01%     
+ Complexity     8201     8200       -1     
============================================
  Files          1153     1153              
  Lines         34013    34019       +6     
  Branches       3045     3047       +2     
============================================
+ Hits          21970    21971       +1     
- Misses        10307    10311       +4     
- Partials       1736     1737       +1     

Impacted Files	Coverage Δ
.../client/AbstractContextRefreshedEventListener.java	0.00% <0.00%> (ø)

... and 3 files with indirect coverage changes

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