Minor: add ListingOptions::with_file_extension_opt
#12461
Merged
+28
−0
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Which issue does this PR close?
Related to #12378
Rationale for this change
While working with @waruto210 on #12417, we noticed this API would make the code easier to work with.
What changes are included in this PR?
Add
ListingOptions::with_file_extension_opt
Are these changes tested?
Yes, by doc test example that is run in CI
Are there any user-facing changes?
New API, no breaking changes