\begin{Verbatim}[commandchars=\\\{\}]
\PYG{k}{\PYGZbs{}begin}\PYG{n+nb}{\PYGZob{}}document\PYG{n+nb}{\PYGZcb{}}

This is some text, very \PYG{k}{\PYGZbs{}textbf}\PYG{n+nb}{\PYGZob{}}meaningful\PYG{n+nb}{\PYGZcb{}} text.
On a new line? And I want     spaces,    lots of spaces.

This is some text, very \PYG{k}{\PYGZbs{}textbf}\PYG{n+nb}{\PYGZob{}}meaningful\PYG{n+nb}{\PYGZcb{}} text.
\PYG{k}{\PYGZbs{}end}\PYG{n+nb}{\PYGZob{}}document\PYG{n+nb}{\PYGZcb{}}
\end{Verbatim}