<extension point="devblocks.search.engine">
			<id>devblocks.search.engine.elasticsearch</id>
			<name>Elasticsearch</name>
			<class>
				<file>api/services/search.php</file>
				<name>DevblocksSearchEngineElasticSearch</name>
			</class>
			<params>
			</params>
		</extension>

class ExampleExtension extends Extension_DevblocksSearchEngine {
}