Hi, two issues I'e noticed with this implementation:

• name - calling it "casing" while the others are case make it harder to find - suggest renaming to "get all cases"?
• there seems to be a bug in the iteration if the input string has commas, such as:

this is a test, test one, test two
this is a test, test one

The use case for this is getting the "normal" proper noun case on a separated list of names