public void setIamRoleArn(String iamRoleArn) {
        this.iamRoleArn = iamRoleArn;
    }
<p>
The ARN of an Identity and Access Management role that is able to write event data to an Amazon Data Firehose
destination.
</p>

@param iamRoleArn
       The ARN of an Identity and Access Management role that is able to write event data to an Amazon Data
       Firehose destination.
aws-java-sdk-pinpointsmsvoicev2/src/main/java/com/amazonaws/services/pinpointsmsvoicev2/model/KinesisFirehoseDestination.java