guhetier

%% From https://tex.stackexchange.com/questions/141892/how-can-i-put-a-curly-brace-inside-a-listing-to-group-code-lines

\documentclass{beamer}
\usepackage{tikz}
\usepackage{listings}
\usetikzlibrary{positioning,decorations.pathreplacing,fit}

\newcommand{\tikzmark}[2][]{%
  \tikz[remember picture,overlay,baseline=-.5ex] \node[#1] (#2) {};%
}