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Lua error in package.lua at line 80: module 'strict' not found.Lua error in package.lua at line 80: module 'strict' not found.

warning Lua error: Module:TNT:172: Missing JsonConfig extension, or not properly configured;

Cannot load https://commons.wikimedia.org/wiki/Data:I18n/Shared Template Warning.tab.

See https://www.mediawiki.org/wiki/Extension:JsonConfig#Supporting_Wikimedia_templates.
Lua error: Module:TNT:172: Missing JsonConfig extension, or not properly configured;

Cannot load https://commons.wikimedia.org/wiki/Data:I18n/Shared Template Warning.tab. See https://www.mediawiki.org/wiki/Extension:JsonConfig#Supporting_Wikimedia_templates.
Lua error: Module:TNT:172:
Missing JsonConfig extension, or not properly configured; Cannot load https://commons.wikimedia.org/wiki/Data:I18n/Shared Template Warning.tab.

See https://www.mediawiki.org/wiki/Extension:JsonConfig#Supporting_Wikimedia_templates.

Usage

Include this module at the top of your code. An error will be raised any time your code tries to read or write to a non-local (undeclared) variable.

Tests

Module:No globals success: 1, error: 0, skipped: 0
Module:No globals/sandbox success: 0, error: 1, skipped: 0



local mt = getmetatable(_G) or {}
function mt.__index (t, k)
	if k ~= 'arg' then
		error('Tried to read nil global ' .. tostring(k), 2)
	end
	return nil
end
function mt.__newindex(t, k, v)
	if k ~= 'arg' then
		error('Tried to write global ' .. tostring(k), 2)
	end
	rawset(t, k, v)
end
setmetatable(_G, mt)