lib/Model/TaskInstanceAttributes.php
public function setPriority($priority)
    {
        $allowed_values = array('1', '2', '3', '4', '5');
        if (!in_array($priority, $allowed_values)) {
            throw new \InvalidArgumentException("Invalid value for 'priority', must be one of '1', '2', '3', '4', '5'");
        }
        $this->container['priority'] = $priority;

        return $this;
    }
public function setPriority($priority)
    {
        $allowed_values = array('1', '2', '3', '4', '5');
        if (!in_array($priority, $allowed_values)) {
            throw new \InvalidArgumentException("Invalid value for 'priority', must be one of '1', '2', '3', '4', '5'");
        }
        $this->container['priority'] = $priority;

        return $this;
    }
Sets priority
@param string $priority
@return $this