old_contents: # Be friendly
  
  import random
  from espresso.main import robot
  
  @robot.respond('(?i)(hi)|(hello)|(howdy)|(hallo)')
  def hello(res):
      res.reply(res.msg.user, "Hi there!")
  
new_contents: # Be friendly
  
  import random
  from espresso.main import robot
  
  hellos = [
      "Well hello there!"
      "Hello!",
      "Hi there!",
      "Hallo!"
  ]
  
  @robot.respond('(?i)(hi)|(hello)|(howdy)|(hallo)')
  def hello(res):
      res.reply(res.msg.user, random.choice(hellos))
  
subject: Improve hello plugin