public StructuredMessageListDefinition withListType(StructuredMessageListType listType) {
        this.listType = listType.toString();
        return this;
    }
<p>
The type of list of the structured message list definition.
</p>

@param listType
       The type of list of the structured message list definition.
@return Returns a reference to this object so that method calls can be chained together.
@see StructuredMessageListType
aws-java-sdk-iotfleetwise/src/main/java/com/amazonaws/services/iotfleetwise/model/StructuredMessageListDefinition.java