* // Build a URL to `api-fields.json`.
* $url = \Civi::service('asset_builder')->getUrl('api-fields.json', array(
* 'entities' => array('Contact', 'Phone', 'Email', 'Address'),
* // Build a URL to `api-fields.json`.
* $url = \Civi::service('asset_builder')->getUrl('api-fields.json', array(
* 'entities' => array('Contact', 'Phone', 'Email', 'Address'),