watcher-introspect.xml

<node>
  <interface name="com.ornyx.MprisWatcher">
    <method name="Next">
    </method>
    <method name="Prev">
    </method>
    <method name="PlayPause">
    </method>
      
  </interface>
  <interface name="org.freedesktop.DBus.Introspectable">
    <method name="Introspect">
      <arg name="out" direction="out" type="s"/>
    </method>
  </interface>
</node>