error in group vars that I can't solve

Hello,

I’m getting the following error when running my task. For some reason Ansible is complaining about >= characters, but it is ok with <= characters in the same file. I tried single quotes and double quotes around the characters but it causes other errors. Files and error message are as follows: Thank you for your help.

ERROR: Syntax Error while loading YAML script, /var/lib/awx/projects/_11813__automated_aws_cloud_watch_alarms/group_vars/ec2-alarms Note: The error may actually appear before this position: line 14, column 20 metric: NetworkIn comparison: >= ^

main.yml:

Have you tried quoting it? > is a reserved Yaml character (signifies
multiline input) so it requires quoting, < is not a reserved
character.

  comparison: '>='

Does that “arn:aws:sns:ap-southeast-1:779200210943:chanakaalerts” works ?.. I am getting the unusual error saying

“msg”: “BotoServerError: 400 Bad Request\n<ErrorResponse xmlns="http://monitoring.amazonaws.com/doc/2010-08-01/\”>\n \n

How to create the notification with ec2_metric_alarm module ?.. I created with “sns” module. But how can I use it in autoscaling group ?