public void setIamRoleArn(String iamRoleArn) {
        this.iamRoleArn = iamRoleArn;
    }
<p>
The Amazon Resource Name (ARN) of the IAM role, for example,
<code>arn:aws:iam::123456789012:role/RedshiftCopyUnload</code>.
</p>

@param iamRoleArn
       The Amazon Resource Name (ARN) of the IAM role, for example,
       <code>arn:aws:iam::123456789012:role/RedshiftCopyUnload</code>.
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/ClusterIamRole.java