public String getDbParameterGroupIdentifier() {
        return this.dbParameterGroupIdentifier;
    }
<p>
The id of the DB parameter group assigned to your DB instance.
</p>

@return The id of the DB parameter group assigned to your DB instance.
aws-java-sdk-timestreaminfluxdb/src/main/java/com/amazonaws/services/timestreaminfluxdb/model/CreateDbInstanceResult.java