\begin{Verbatim}[commandchars=\\\{\}]
\PYG{n}{String}\PYG{+w}{ }\PYG{n+nf}{concat}\PYG{p}{(}\PYG{n}{String}\PYG{+w}{ }\PYG{n}{str}\PYG{p}{)}
\end{Verbatim}