public ReadOnlyCollection <Tag> GetAll()
{
var xmlResponse = connection.GetXmlDocument(TagQuery.All());
var tags = (from tag in xmlResponse.Descendants("tag")
select new Tag
{
Name = tag.Attribute("tag").Value,
Count = Convert.ToInt32(tag.Attribute("count").Value)
}).ToList <Tag>();
return(new ReadOnlyCollection <Tag>(tags));
}