getProcessNormalized example

/** * {@inheritdoc} */
  public function getProcessPlugins(array $process = NULL) {
    if (!isset($process)) {
      $process = $this->getProcess();
    }
    $index = serialize($process);
    if (!isset($this->processPlugins[$index])) {
      $this->processPlugins[$index] = [];
      foreach ($this->getProcessNormalized($process) as $property => $configurations) {
        $this->processPlugins[$index][$property] = [];
        foreach ($configurations as $configuration) {
          if (isset($configuration['source'])) {
            $this->processPlugins[$index][$property][] = $this->processPluginManager->createInstance('get', $configuration, $this);
          }
          // Get is already handled.           if ($configuration['plugin'] != 'get') {
            $this->processPlugins[$index][$property][] = $this->processPluginManager->createInstance($configuration['plugin'], $configuration, $this);
          }
          if (!$this->processPlugins[$index][$property]) {
            throw new MigrateException("Invalid process configuration for $property");
          }