public void setServiceRole(String serviceRole) {
        this.serviceRole = serviceRole;
    }
<p>
The IAM role that Amazon EMR assumes in order to access Amazon Web Services resources on your behalf.
</p>

@param serviceRole
       The IAM role that Amazon EMR assumes in order to access Amazon Web Services resources on your behalf.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/Cluster.java