I am trying to set up an cloud watch alarm witch ansible `ec2_metric_alarm` module and I do not know how to set it to send an email on alarm 

The code is 

```yaml
- name: add alarm
  ec2_metric_alarm:
    state: present
    region: eu-west-1
    name: "LoadAverage"
    metric: "LoadAverage"
    statistic: Average
    comparison: ">"
    threshold: 3.0
    evaluation_periods: 3
    period: 60
    unit: "None"
    description: "Load Average"
    dimensions: {'Role':{{itme[0]}}, Node:{{item[1]}} }
    alarm_actions: ["action1","action2"]

```

What is the syntax or what do I do to express that I want it to send emails on in `alarm_actions`?