/**
* Get the data: URI that will produce this image.
*
* @param ResourceLoaderContext $context Any context
* @param string|null $variant Variant to get the URI for
* @param string $format Format to get the URI for, 'original' or 'rasterized'
* @return string
*/
public function getDataUri(ResourceLoaderContext $context, $variant, $format)
{
$type = $this->getMimeType($format);
$contents = $this->getImageData($context, $variant, $format);
return CSSMin::encodeStringAsDataURI($contents, $type);
}
