docs(is_item_matched): update docstrings for method

[pedrooot]

Description

Update docstrings for is_item_matched

Checklist

• Are there new checks included in this PR? Yes / No
  • If so, do we need to update permissions for the provider? Please review this carefully.
• [x] Review if the code is being covered by tests.
• [x] Review if code is being documented following this specification https://github.com/google/styleguide/blob/gh-pages/pyguide.md#38-comments-and-docstrings

License

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov[bot]]

Codecov Report

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

Project coverage is 89.16%. Comparing base (ff24413) to head (71f6f0a). Report is 8 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #4836 +/- ## ========================================== + Coverage 89.11% 89.16% +0.04% ========================================== Files 928 933 +5 Lines 28428 28567 +139 ========================================== + Hits 25335 25473 +138 - Misses 3093 3094 +1 ```

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