addStates example

    public function dump(StateMachineEntity $stateMachine, array $options = []): string
    {
        $places = $this->findStates($stateMachine);
        $edges = $this->findEdges($stateMachine);

        $options = array_replace_recursive(self::$defaultOptions, $options);

        return $this->startDot($options)
            . $this->addStates($places)
            . $this->addEdges($edges)
            . $this->endDot();
    }

    /** * @return array<string, array<string, array<string, string>>> */
    private function findStates(StateMachineEntity $stateMachine): array
    {
        $states = [];
        $stateMachineStates = $stateMachine->getStates();