There are no user-facing parts here. See the List::SomeUtils manpage for
API details.

You shouldn't have to install this module directly. When you install the
List::SomeUtils manpage, it checks whether your system has a compiler. If
it does, then it adds a dependency on this module so that it gets installed
and you have the faster XS implementation.

This distribution requires the List::SomeUtils manpage but to avoid a
circular dependency, that dependency is explicitly left out from the this
distribution's metadata. However, without LSU already installed this module
cannot function.