com.ubuntu.ProxyManager.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE node PUBLIC
"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">

<node>
  <interface name="com.ubuntu.ProxyManager">
    <method name="Apply">
      <arg name="http" direction="in" type="s"/>
      <arg name="https" direction="in" type="s"/>
      <arg name="ftp" direction="in" type="s"/>
      <arg name="socks" direction="in" type="s"/>
      <arg name="no_proxy" direction="in" type="s"/>
      <arg name="auto" direction="in" type="s"/>
    </method>
  </interface>
  <interface name="org.freedesktop.DBus.Introspectable">
    <method name="Introspect">
      <arg name="out" direction="out" type="s"/>
    </method>
  </interface>
</node>