# NOT RUN {
   rgla_screenie = list('snapshot_png'='fsbain_out.png');
   rgla_screenie = rglactions();   # same as above
   rgla_clamp = list('trans_fun'=clip.data);
   rgla_limit = list('trans_fun'=limit_fun(2,5));
   rgla_ls = list('trans_fun'=limit_fun_na(2,5), 'snapshot_png'='~/fig1.png');
# }
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