public function resize($width, $height, $fit = 'clip', $align = 'center')
    {
        $options = [
            'w' => $width,
            'h' => $height,
            'f' => $fit,
            'a' => $align
        ];

        // call TransformationMixin function
        $this->setTransformUrl('resize', $options);

        return $this;
    }