AJAX command interface.
All AJAX commands passed to AjaxResponse objects should implement these methods.
| Name | Modifiers | Type | Description |
|---|---|---|---|
| CommandInterface::render | public | function | Return an array to be run through json_encode and sent to the client. |
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Ajax!CommandInterface.php/interface/CommandInterface/8.1.x