toXML method
Convert the thumbnail to its XML representation.
Implementation
XMLNode toXML() {
return XMLNode.xmlns(
tag: 'thumbnail',
xmlns: jingleContentThumbnailXmlns,
attributes: {
'uri': uri.toString(),
if (mediaType != null) 'media-type': mediaType!,
if (width != null) 'width': width.toString(),
if (height != null) 'height': height.toString(),
},
);
}