public CreateThingGroupRequest withParentGroupName(String parentGroupName) {
        setParentGroupName(parentGroupName);
        return this;
    }
<p>
The name of the parent thing group.
</p>

@param parentGroupName
       The name of the parent thing group.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/CreateThingGroupRequest.java