How can I find the git root of a installed plugin inside its config function?

[glyh]

As title. Some plugins want to install binaries that may be used by itself(e.g. https://github.com/liquidz/vim-iced), that's why I need this funcitonality.

[folke]

config = function(plugin, opts)
  vim.print(plugin.dir)
end

[glyh]

Thanks