src/Meta.php
public function serialize()
    {
        $data = array(
            $this->href,
            $this->width,
            $this->height,
            $this->size
        );

        return serialize($data);
    }
public function serialize()
    {
        $data = array(
            $this->href,
            $this->width,
            $this->height,
            $this->size
        );

        return serialize($data);
    }
{@inheritDoc}