Use make.sh to generate both .sty and documentation. Then use .sty file as appropriate. Alternatively, feed .ins to (pdf)latex to generate .sty file only.
See the documentation.
Just like a normal \verb.
\documentclass{article}
\usepackage{lwtverb}
\begin{document}
\begin{minipage}{5cm}
\lwtverb[wrapline]+this_very_long_name_will_be_wrapped_and_all_line_breaks_will_be_indicated+.
\end{minipage}
\end {document}