…or deprecate and hide it from the docs.

R has a notion of the “default graphics device”, i.e. getOption('device'), which is either a string containing a function name or a function.

we could leverage this in two ways:

1. use it with custom options:

   dev <- getOption('device')
   if (!is.function(dev)) {
       dev <- get(dev)
   }
   do.call(dev, as.list(options('jupyter.plot')))

2. require the user to override the defaults by setting it to a function:

   #our initialization
   options(device = function(file.name, width = 7, height = 7,...) {
       png(file.name, width = width, height = height, ...)
   })
   
   …
   
   dev <- getOption('device')
   if (!is.function(dev)) {
       dev <- get(dev)
   }
   dev()

the only problem: we want to allow different mime types (PNG, JPG, SVG) for plots: if it’s a function, we can’t derive the type from the option.