local __TS__Generator
do
    local function generatorIterator(self)
        return self
    end
    local function generatorNext(self, ...)
        local co = self.____coroutine
        if coroutine.status(co) == "dead" then
            return {done = true}
        end
        local status, value = coroutine.resume(co, ...)
        if not status then
            error(value, 0)
        end
        return {
            value = value,
            done = coroutine.status(co) == "dead"
        }
    end
    function __TS__Generator(fn)
        return function(...)
            local args = {...}
            local argsLength = __TS__CountVarargs(...)
            return {
                ____coroutine = coroutine.create(function() return fn(__TS__Unpack(args, 1, argsLength)) end),
                [Symbol.iterator] = generatorIterator,
                next = generatorNext
            }
        end
    end
end