pandoc variable tex

cmd.sh

pandoc --template test.tex --variable NAME=tom --variable checkedvar -o test.pdf /dev/null

test.tex

\documentclass{article}
\usepackage{enumitem}
\usepackage{wasysym}

\newlist{todolist}{itemize}{2}
\setlist[todolist]{label=\Square}

\def\true{true}
\def\checkbox#1{
  \def\temp{#1}
  \ifx \temp\true
    \CheckedBox
  \else
    \Square
  \fi
}

\begin{document}
Hello $NAME$!

\begin{todolist}
  \item[\checkbox{$checkedvar$}] checked
  \item[\checkbox{$notcheckedvar$}] not checked
\end{todolist}
\end{document}