public void setIamRoleArn(String iamRoleArn) {
        this.iamRoleArn = iamRoleArn;
    }
<p>
The IAM role ARN for the Amazon Redshift IAM Identity Center application instance. It has the required
permissions to be assumed and invoke the IDC Identity Center API.
</p>

@param iamRoleArn
       The IAM role ARN for the Amazon Redshift IAM Identity Center application instance. It has the required
       permissions to be assumed and invoke the IDC Identity Center API.
aws-java-sdk-redshift/src/main/java/com/amazonaws/services/redshift/model/CreateRedshiftIdcApplicationRequest.java