Exporter example

return $this->doToString();
    }

    protected function additionalFailureDescription($other): string
    {
        return $this->doAdditionalFailureDescription($other);
    }

    protected function exporter(): Exporter
    {
        if (null === $this->exporter) {
            $this->exporter = new Exporter();
        }

        return $this->exporter;
    }

    protected function failureDescription($other): string
    {
        return $this->doFailureDescription($other);
    }

    protected function matches($other): bool
    {