text: # Processing Lists
  # - any, all
  # - filter
  # - map
  # - zip
  # - custom sort
  
  users = [
      {'id': 12323, 'displayName':'Joe Smith', 'email':'joe.smith@here.com'},
      {'id': 22312, 'displayName': 'Bob Smith', 'email': 'bob.smith@here.com'},
      {'id': 37373, 'displayName': 'angel chen', 'email': 'angel.chen@here.com'},
  ]
  print(users)
  
  def sorter(user):
      return user['displayName'].lower()
  
  users.sort(key=sorter)
  print(users)
  
  reverseUsers = sorted(users, key=sorter, reverse=True)
  print(reverseUsers)
  