How to use the mixer cloudwatch adapter / how to send istio logs to cloudwatch?

I am new to istio and am trying to send istio logs to cloudwatch. I have read over the adapter model and somewhat have an idea of what a handler, template, instance, and rule is. However I am stumped on how to proceed. I imagine I need to write my own handler, template, instance, and rules for the cloudwatch adapter? Where would these files actually live / how would they be applied? What would they look like? I can’t really find any documentation on this, and have been reading up all day.

Thank you.