Task/Process/ProcessExecutorTask.php
public function initialize(ProcessState $state)
    {
        parent::initialize($state);
        $this->process = $this->getOption($state, 'process');
    }
public function initialize(ProcessState $state)
    {
        parent::initialize($state);
        $this->process = $this->getOption($state, 'process');
    }
{@inheritdoc}

@throws \InvalidArgumentException