$VAR1 = {
          'node' => [
                       {
                         'key1' => 'value1',
                         'key2' => 'value2',
                       },
                       {
                         'key1' => 'value3',
                         'key2' => 'value4',
                       },
                     ],     
};

##</code><code>##

<root>
  <node>
    <key1>value1</key1>
    <key2>value2</key2>
  </node>
  <node>
    <key1>value3</key1>
    <key2>value4</key2>
  </node>
</root>

##</code><code>##

$VAR1 = {
          'node' => {
                       'value1' => {
                                        'key2' => 'value2',
                                                 },
                       'value3' => {
                                        'key4' => 'value4',
                                                 },
                    },
};