500 Internal Server Error

Using a GET on this URL throws a 500 error:

http://example.com/?q=my_endpoint/search_node/retrieve.json&keys=hello

This is because the call to services_node_load() inside of _services_search_resource_node() is no longer valid, since the function has been removed from the Services module:

https://drupal.org/node/1971116

Here is the patch that removed it:

https://drupal.org/files/services-remove-services_node_load.patch

I've created a simple patch that restores functionality of this module.