Creates or updates a policy for an Auto Scaling group. To update an existing policy, use the existing policy name and set the parameters you want to change. Any existing parameter not changed in an update to an existing policy is not changed in this update request.
If you exceed your maximum limit of step adjustments, which by default is 20 per region, the call fails. For information about updating this limit, see AWS Service Limits in the Amazon Web Services General Reference.
/// You have already reached a limit for your Auto Scaling resources (for example, groups,
/// launch configurations, or lifecycle hooks). For more information, see
DescribeAccountLimits.
///
/// You already have a pending update to an Auto Scaling resource (for example, a group,
/// instance, or load balancer).
///
