STYLE: Inconsistent namespace - arrays #39992
- [ ] closes #xxxx
- [ ] tests added / passed
- [x] Ensure all linting tests pass, see [here](https://pandas.pydata.org/pandas-docs/dev/development/contributing.html#code-standards) for how to run them
- [ ] whatsnew entry

Linking: https://github.com/pandas-dev/pandas/issues/39992 @thomasyu888: Welcome to `pandas` !

CI notwithstanding, LGTM! Thanks @thomasyu888 