fix: remove brackets and other special chars from the key

[codecov[bot]]

Codecov Report

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

Project coverage is 90.58%. Comparing base (5822a8a) to head (bf19f04).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #43 +/- ## ========================================== + Coverage 90.56% 90.58% +0.02% ========================================== Files 12 12 Lines 424 425 +1 ========================================== + Hits 384 385 +1 Misses 40 40 ```

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[pep8speaks]

Hello @njzjz! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file wenxian/reference.py:

Line 100:80: E501 line too long (85 > 79 characters)

Comment last updated at 2024-07-01 02:00:12 UTC