```
% pandoc -f latex -t native
\begin{Verbatim}[key1=value1]
code1

\end{Verbatim}


\begin{lstlisting}[key2=value2]
code2
  
\end{lstlisting}

\begin{verbatim}
code3
\end{verbatim}

\begin{verbatim}
code4
    \end{verbatim}

\begin{verbatim}
code5\end{verbatim}
^D
[ CodeBlock
  ( "", [], [ ( "key1", "value1" ) ] ) "code1\n"
, CodeBlock
  ( "", [], [ ( "key2", "value2" ) ] ) "code2\n  "
, CodeBlock
  ( "", [], [] ) "code3"
, CodeBlock
  ( "", [], [] ) "code4"
, CodeBlock
  ( "", [], [] ) "code5"
]
```