blockgame/mods/bg_api/wrappers.lua

local function create_plain_wrapper (function_name)
	local wrapper = function (...)
		--[[
		local args = {...}

		-- labels will be used later, probably.
		local label = #args > 1 and args[1] or "unlabeled"
		local callback = #args > 1 and args[2] or args[1]

		minetest[function_name](callback)
		]]--
		minetest[function_name](...)
	end

	blockgame[function_name] = wrapper
end

for name in pairs({
	register_abm = true,
	register_lbm = true,
	register_on_joinplayer = true,
	register_node = true,
	register_item = true,
	register_on_placenode = true,
	register_on_dignode = true,
	register_on_punchnode = true,
	register_globalstep = true,
}) do
	create_plain_wrapper(name)
end