You can search for identifiers within the package.
in-package search v0.2.0
val gpx : gpx -> Xml.xml
val rte : rte -> Xml.xml
val rtept : wpt -> Xml.xml
val trk : trk -> Xml.xml
val trkpt : wpt -> Xml.xml
val trkseg : trkseg -> Xml.xml
val wpt : wpt -> Xml.xml