public String getDBParameterGroupFamily() {
        return this.dBParameterGroupFamily;
    }
<p>
The name of a specific DB parameter group family to return details for.
</p>
<p>
Constraints:
</p>
<ul>
<li>
<p>
If supplied, must match an existing DBParameterGroupFamily.
</p>
</li>
</ul>

@return The name of a specific DB parameter group family to return details for.</p>
        <p>
        Constraints:
        </p>
        <ul>
        <li>
        <p>
        If supplied, must match an existing DBParameterGroupFamily.
        </p>
        </li>
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/DescribeDBEngineVersionsRequest.java