code: def send_email_sns(sender, subject, message, topic_ARN, image_png):
      
      from boto3 import resource as boto3_resource
  
      sns = boto3_resource('sns')
      topic = sns.Topic(topic_ARN[0])
  
      # Subject is max 100 chars
      if len(subject) > 100:
          subject = subject[0:48] + '...' + subject[-49:]
  
      response = topic.publish(Subject=subject, Message=message)
  
      logger.debug(("Message sent to SNS.\nMessageId: {},\nRequestId: {},\n"
                   "HTTPSStatusCode: {}").format(response['MessageId'],
                                                 response['ResponseMetadata']['RequestId'],
                                                 response['ResponseMetadata']['HTTPStatusCode']))
docs: Sends notification through AWS SNS. Takes Topic ARN from recipients.
  
      Does not handle access keys.  Use either
        1/ configuration file
        2/ EC2 instance profile
  
      See also https://boto3.readthedocs.io/en/latest/guide/configuration.html.