old_contents: """A simple example of a hug API call with versioning"""
  import hug
  
  
  @hug.get('/echo', versions=1)
  def echo(text):
      return text
  
  
  @hug.get('/echo', versions=range(2, 5))
  def echo(text):
      return "Echo: {text}".format(**locals())
  
new_contents: """A simple example of a hug API call with versioning"""
  import hug
  
  
  @hug.get('/echo', versions=1)
  def echo(text):
      return text
  
  
  @hug.get('/echo', versions=range(2, 5))
  def echo(text):
      return "Echo: {text}".format(**locals())
  
  
  @hug.get('/unversioned')
  def hello():
      return "Hello world!"
  
subject: Add unversioned endpoint to versioning example to demonstrate usage