old_contents: from __future__ import print_function, absolute_import, division
  
  import boto3
  
  
  class AwsSesPlugin(object):
      def get_users(self):
          client = boto3.client('iam')
          user_response = client.list_users()
          users = user_response['Users']
          return users
  
      def check_users(self, users):
          if not users:
              return True
          blacklist = {'arn:aws:iam::123456789:user/test1', 'arn:aws:iam::123456789:user/test3',
                       'arn:aws:iam::123456789:user/test5'}
          print(users)
          for user in users:
              if user['Arn'] not in blacklist:
                  return False
          return False
  
new_contents: from __future__ import print_function, absolute_import, division
  
  import boto3
  
  
  class AwsIamPlugin(object):
      def get_users(self):
          client = boto3.client('iam')
          user_response = client.list_users()
          users = user_response['Users']
          return users
  
      def check_users(self, users):
          if not users:
              return True
          blacklist = {'arn:aws:iam::123456789:user/test1', 'arn:aws:iam::123456789:user/test3',
                       'arn:aws:iam::123456789:user/test5'}
          print(users)
          for user in users:
              if user['Arn'] not in blacklist:
                  return False
          return False
  
subject: copy paste error