<?xml version="1.0"?>
<members>
  <member uid="&amp;1">
    <name>&amp;name1</name>
    <age>27</age>
  </member>
  <member uid="&amp;2">
    <name>&amp;name2</name>
    <age>20</age>
  </member>
</members>

members: 
  - member: 
      - name: "&name1"
      - age: "27"
      - "@uid": "&1"
  - member: 
      - name: "&name2"
      - age: "20"
      - "@uid": "&2"

<?xml version="1.0"?>
<members>
  <member uid="&amp;1">
    <name>&amp;name1</name>
    <age>27</age>
  </member>
  <member uid="&amp;2">
    <name>&amp;name2</name>
    <age>20</age>
  </member>
</members>