public void setFunctionInstances(java.util.Collection<ListSolFunctionInstanceInfo> functionInstances) {
        if (functionInstances == null) {
            this.functionInstances = null;
            return;
        }

        this.functionInstances = new java.util.ArrayList<ListSolFunctionInstanceInfo>(functionInstances);
    }
<p>
Network function instances.
</p>

@param functionInstances
       Network function instances.
aws-java-sdk-tnb/src/main/java/com/amazonaws/services/tnb/model/ListSolFunctionInstancesResult.java