r params$papersize
"knitr::opts_chunk$set(echo = FALSE, message = FALSE, warning = FALSE, fig.align = "center")
\begin{center}
\Large \textbf{
# thanks so much https://stackoverflow.com/questions/46226364/passing-parameters-in-rmarkdown-to-the-text-or-headings cat(params$attendee)
}
\vspace{1.3cm}
\normalsize has participated in the
\vspace{0.8cm}
\Large \textbf{
cat(as.character(params$workshop), "\n")
} \normalsize
\large \textbf{
cat(as.character(params$date), ", ", params$location, "\n", sep = "")
}
\vspace{0.5cm}
\Large \textbf{ Workshop contents:}
\normalsize \begin{varwidth}{0.8\textwidth}
\end{varwidth}
\vfill
\rule[0in]{3in}{1pt}\
\textbf{r params$certifier
\
r params$credentials
}\
\vspace{0.8cm}
\end{center}
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