piqi top-level declarations converted with `piqi convert -f piqi -t xml -o example.xml example.piqi`

example.piqi

.module example

.custom-field erlang-type-prefix
.erlang-type-prefix ""

.alias [
    .name itemid
    .type uint32
]
.record [
    .name foobar
    .field [ .type itemid ]
]

example.xml

<?xml version="1.0" encoding="UTF-8"?>
<value>
  <module>example</module>
  <typedef>
    <alias>
      <name>itemid</name>
      <type>uint32</type>
    </alias>
  </typedef>
  <typedef>
    <record>
      <name>foobar</name>
      <field>
        <type>itemid</type>
        <mode>required</mode>
      </field>
    </record>
  </typedef>
</value>