instruction: Write Go code to go by example: xml
output: ```dockerfile
  $ go run xml.go
   <plant id="27">
   <name>Coffee</name>
   <origin>Ethiopia</origin>
   <origin>Brazil</origin>
   </plant>
  <?xml version="1.0" encoding="UTF-8"?>
   <plant id="27">
   <name>Coffee</name>
   <origin>Ethiopia</origin>
   <origin>Brazil</origin>
   </plant>
  Plant id=27, name=Coffee, origin=[Ethiopia Brazil]
   <nesting>
   <parent>
   <child>
   <plant id="27">
   <name>Coffee</name>
   <origin>Ethiopia</origin>
   <origin>Brazil</origin>
   </plant>
   <plant id="81">
   <name>Tomato</name>
   <origin>Mexico</origin>
   <origin>California</origin>
   </plant>
   </child>
   </parent>
   </nesting>
  ```