def is_aws_managed_policy(policy_arn):
    """
    Look for only the AWS Managed Policies (not policies you created) by looking for "iam::aws" in the ARN
    Got this trick from: https://gist.github.com/0xdabbad00/4ed4a7a56bbb93d70505a709de227414#file-grab-sh-L21
    """
    if 'iam::aws' in policy_arn:
        return True
    else:
        return False