Clinner\ValueHolder::create PHP Method

    public static function create($initial = array())
    {
        if ($initial instanceof self) {
            return $initial;
        } else {
            return new self($initial);
        }
    }

 public function testStaticCreateWithInitialValuesValueHolder()
 {
     $initialValues = array('key' => 'value');
     $sourceValueHolder = new ValueHolder($initialValues);
     $valueHolder = ValueHolder::create($sourceValueHolder);
     $this->assertSame($sourceValueHolder, $valueHolder);
 }