Thanks for opening a pull request!

If this is not a minor PR. Could you open an issue for this pull request on GitHub? https://github.com/apache/arrow/issues/new/choose

Opening GitHub issues ahead of time contributes to the Openness of the Apache Arrow project.

Then could you also rename the pull request title in the following format?

GH-${GITHUB_ISSUE_ID}: [${COMPONENT}] ${SUMMARY}

or

MINOR: [${COMPONENT}] ${SUMMARY}

See also:

• Other pull requests
• Contribution Guidelines - Contributing Overview

Then could you also rename the pull request title in the following format?

I can in fact not... I think this classifies as a minor change, but I seem to lack permissions to rename my own PR... The button for is isn't showing. Must be a GH thing.

I think this change is OK and would also update the DictionaryArray method docstrings.

@AlenkaF would you prefer a separate PR or should I extend this one?

Please, extend this one.

Done. While at it, I also saw that RunEndEncodedArray might need updating?