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+<file lua round.lua>
+-- Copyright (C) 2018 CurlyMo & Niek
+-- This Source Code Form is subject to the terms of the Mozilla Public
+-- License, v. 2.0. If a copy of the MPL was not distributed with this
+-- file, You can obtain one at http://mozilla.org/MPL/2.0/.
+local M = {}
+local function round(num, numDecimalPlaces)
+  local mult = 10^(numDecimalPlaces or 0)
+  return math.floor(num * mult + 0.5) / mult
+end
+function M.run(a, b, c)
+	if a == nil or b == nil or c ~= nil then
+		error("ROUND requires two arguments");
+	end
+	if tonumber(a) == nil then
+		error(string.format("ROUND argument #1 expected number, \"%s\" given", type(a)));
+	end
+	if tonumber(b) == nil then
+		error(string.format("ROUND argument #2 expected number, \"%s\" given", type(b)));
+	end
+	local n = tonumber(b);
+	if n < 0 or n ~= math.floor(n) then
+		error(string.format("ROUND argument #2 expected positive integer number, \"%s\" given", b));
+	end
+	return round(a, b);
+end
+function M.info()
+	return {
+		name = "ROUND",
+		version = "1.0",
+		reqversion = "8.1.1",
+		reqcommit = "0"
+	}
+end
+return M;
+</file>