public function run(string $file, Node $node): array
    {
        // This inspection only works to top level statements in each file.
        if ($this->inspectedFile === $file) {
            return [];
        }

        $found = false;
        foreach ($node->children as $child) {
            if (!$child instanceof Node) {
                continue;
            }

            if ($child->kind !== \ast\AST_DECLARE) {
                continue;
            }

            $declares = $child->children["declares"];
            if ($declares->kind !== \ast\AST_CONST_DECL) {
                continue;
            }

            foreach ($declares->children as $declare) {
                if ($declare->kind === \ast\AST_CONST_ELEM && $declare->children["name"] === "strict_types") {
                    $found = true;
                }
            }
        }
        $this->inspectedFile = $file;

        if (!$found) {
            return [new Hint(
                self::HINT_TYPE,
                self::HINT_MESSAGE,
                $file,
                $node->lineno,
                self::HINT_LINK
            )];
        }

        return [];
    }