compileLessDefinition example

        $this->compiler->setConfiguration(
            $this->getCompilerConfiguration($shop)
        );

        $config = $this->getConfig($template, $shop);
        $this->compiler->setVariables($config);

        $definitions = $this->lessCollector->collectLessDefinitions($template, $shop);
        foreach ($definitions as $definition) {
            $this->compileLessDefinition($shop, $definition);
        }

        $css = $this->compiler->get();
        $this->compiler->reset();

        $success = $file->fwrite($css);
        if ($success === null) {
            throw new RuntimeException('Could not write to ' . $file->getPath());
        }
        $file->flock(LOCK_UN);   // release the lock