Joli\Jane\Tests\Expected\Model\Test::setNullOrString PHP Method

public setNullOrString ( string \| null $nullOrString = null ) : self
$nullOrString	string \| null
return	self

    public function setNullOrString($nullOrString = null)
    {
        $this->nullOrString = $nullOrString;
        return $this;
    }

Test