public string ToUtme()
{
return("8(" +
string.Join("*", _variables.Where(v => v != null).Select(kvp => AnalyticsClient.EncodeUtmePart(kvp.Value.Key)).ToArray()) +
")9(" +
string.Join("*", _variables.Where(v => v != null).Select(kvp => AnalyticsClient.EncodeUtmePart(kvp.Value.Value)).ToArray()) +
")11(" +
string.Join("*", _variables.Where(v => v != null).Select(kvp => "1").ToArray()));
}
