\newenvironment{argy}[3]{%
\begin{list}{asdf}{%
      \setlength{\itemsep}{0. cm}
      \setlength{\labelwidth}{2.8 cm}
      \setlength{\labelsep}{.4 cm}
      \setlength{\leftmargin}{3.3 cm}}
\item[Argument:] #1 
\item[Type:] #2 
\item[Access:] #3 
\item[Description:] 
}{\end{list}}

\newcommand{\last}{\raisebox{-.4 ex}{*}}
