public void setActionArn(String actionArn) {
        this.actionArn = actionArn;
    }
<p>
The Amazon Resource Name (ARN) of the action.
</p>

@param actionArn
       The Amazon Resource Name (ARN) of the action.
aws-java-sdk-sagemaker/src/main/java/com/amazonaws/services/sagemaker/model/DescribeActionResult.java