* Fixed diff summary to only show states with values.
* Removed redundant comma by using join.
* Swithced for loop to generator for better readability.
* [pre-commit.ci] auto fixes from pre-commit.com hooks
for more information, see https://pre-commit.ci
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>