[CLIENT-3961] Add missing LoopVarHLL and unhide documentation for path expressions

[juliannguyen4]

• Fix modify by path expression and operation docstring.

New docs

• LoopVarHLL

Hidden docs revealed

• Path expression flags

Contexts

• https://aerospike-python-client--899.org.readthedocs.build/en/899/aerospike_helpers.cdt_ctx.html#aerospike_helpers.cdt_ctx.cdt_ctx_all_children

Expressions

• https://aerospike-python-client--899.org.readthedocs.build/en/899/aerospike_helpers.expressions.html#aerospike_helpers.expressions.base.LoopVar
• https://aerospike-python-client--899.org.readthedocs.build/en/899/aerospike_helpers.expressions.html#aerospike_helpers.expressions.base.SelectByPath
• https://aerospike-python-client--899.org.readthedocs.build/en/899/aerospike_helpers.expressions.html#aerospike_helpers.expressions.base.ModifyByPath
• https://aerospike-python-client--899.org.readthedocs.build/en/899/aerospike_helpers.expressions.html#aerospike_helpers.expressions.base.ResultRemove

Operations

• https://aerospike-python-client--899.org.readthedocs.build/en/899/aerospike_helpers.operations.html#aerospike_helpers.operations.operations.select_by_path
• https://aerospike-python-client--899.org.readthedocs.build/en/899/aerospike_helpers.operations.html#aerospike_helpers.operations.operations.modify_by_path

Manual testing

• Build artifacts passes with server RC
• Massif usage looks ok with server RC
• Valgrind shows no memory errors or leaks from these changes with server RC

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.38%. Comparing base (6739ae7) to head (ac16448).
⚠️ Report is 3 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #899   +/-   ##
=======================================
  Coverage   83.37%   83.38%           
=======================================
  Files          99       99           
  Lines       14389    14394    +5     
=======================================
+ Hits        11997    12002    +5     
  Misses       2392     2392           

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[justinlee-aerospike]

changes are fine