Improve mlchain_context

[meocong]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 49.10%. Comparing base (f46da7b) to head (673dc09).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
mlchain/server/view.py	0.00%	3 Missing ⚠️
mlchain/server/flask_server.py	0.00%	1 Missing ⚠️
mlchain/server/starlette_server.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #58      +/-   ##
==========================================
- Coverage   49.16%   49.10%   -0.07%     
==========================================
  Files          42       42              
  Lines        3726     3729       +3     
==========================================
- Hits         1832     1831       -1     
- Misses       1894     1898       +4     

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