feat: make volatile session

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 47.46%. Comparing base (1dc17d7) to head (c256f18). Report is 136 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #330 +/- ## ============================================ + Coverage 44.43% 47.46% +3.03% - Complexity 1568 1743 +175 ============================================ Files 297 305 +8 Lines 11502 12385 +883 Branches 1121 1236 +115 ============================================ + Hits 5111 5879 +768 - Misses 5987 6047 +60 - Partials 404 459 +55 ```

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