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@ 2014-10-31T16:21:41Z

<?hh

class Foo<Tk,Tv> extends Map<Tk, Tv> {
}

function test(Map<string, Map<string, string>> $param): void {
    $var = $param->get("key") != null ? $param->get("key") : Map {};
    $var->get("key");
}

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This is an error 404