inserting a latex function into the pre-body of a tex file.

[plukethep]

Hi,

I'm working on improving the latex output of gt. It's a great project and I'm keen to use it for my work.

I'm currently working on implementing column widths, which, when combined with alignments, are a little fiddly in latex. I would like to use to align right a column:

\newcolumntype{R}[1]{>{\raggedleft\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}

or similar. I can inline this, but multiple tables would lead to multiple declarations, and I would would prefer to add the \newcolumn or \newcommand latex functions to the pre-body of the tex file just the once.

gt_latex_dependencies() in helper.R appears to do what I want, but it doesn't appear to be functioning. Am I missing something?