"xmlns" => "http://www.topografix.com/GPX/1/1",
"xmlns:xsi" => "http://www.w3.org/2001/XMLSchema-instance",
"xsi:schemaLocation" => "http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd") do
"xmlns" => "http://www.topografix.com/GPX/1/1",
"xmlns:xsi" => "http://www.w3.org/2001/XMLSchema-instance",
"xsi:schemaLocation" => "http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd") do