public void setSlaveInstanceType(String slaveInstanceType) {
        this.slaveInstanceType = slaveInstanceType;
    }
<p>
The Amazon EC2 core and task node instance type.
</p>

@param slaveInstanceType
       The Amazon EC2 core and task node instance type.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/JobFlowInstancesDetail.java