public InstanceGroup withConfigurations(java.util.Collection<Configuration> configurations) {
        setConfigurations(configurations);
        return this;
    }
<note>
<p>
Amazon EMR releases 4.x or later.
</p>
</note>
<p>
The list of configurations supplied for an Amazon EMR cluster instance group. You can specify a separate
configuration for each instance group (master, core, and task).
</p>

@param configurations
       <p>
       Amazon EMR releases 4.x or later.
       </p>
       </note>
       <p>
       The list of configurations supplied for an Amazon EMR cluster instance group. You can specify a separate
       configuration for each instance group (master, core, and task).
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/InstanceGroup.java