DOC GH19312
- [x] closes #19312 
- [ ] tests added / passed
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

this was just merged by #19324 

thanks. love to have you contribute on another issue! # [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/19345?src=pr&el=h1) Report
> Merging [#19345](https://codecov.io/gh/pandas-dev/pandas/pull/19345?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/2952fbd556e1bc4b5fac70c727652b5419e8e096?src=pr&el=desc) will **not change** coverage.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/19345/graphs/tree.svg?width=650&height=150&src=pr&token=eZ4WkYLtcO)](https://codecov.io/gh/pandas-dev/pandas/pull/19345?src=pr&el=tree)

```diff
@@           Coverage Diff           @@
##           master   #19345   +/-   ##
=======================================
  Coverage   91.57%   91.57%           
=======================================
  Files         150      150           
  Lines       48702    48702           
=======================================
  Hits        44597    44597           
  Misses       4105     4105
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `89.94% <ø> (ø)` | :arrow_up: |
| #single | `41.71% <ø> (ø)` | :arrow_up: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/19345?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/core/series.py](https://codecov.io/gh/pandas-dev/pandas/pull/19345/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvc2VyaWVzLnB5) | `94.6% <ø> (ø)` | :arrow_up: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/19345?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/19345?src=pr&el=footer). Last update [2952fbd...c7aa89e](https://codecov.io/gh/pandas-dev/pandas/pull/19345?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
