private function addFormatFromFormatNode(\DOMNode $formatNode, &$formats)
{
$key = $this->getKeyFromFormatNode($formatNode);
$internal = $this->getInternalFlagFromFormatNode($formatNode);
$meta = $this->getMetaFromFormatNode($formatNode);
$scale = $this->getScaleFromFormatNode($formatNode);
$transformations = $this->getTransformationsFromFormatNode($formatNode);
$options = $this->getOptionsFromFormatNode($formatNode);
$formats[$key] = ['key' => $key, 'internal' => $internal, 'meta' => $meta, 'scale' => $scale, 'transformations' => $transformations, 'options' => array_merge($this->globalOptions, $options)];
}