wp-includes/rest-api/endpoints/class-wp-rest-edit-site-export-controller.php:34Registers the site export route.
public function register_routes() { register_rest_route( $this->namespace, '/' . $this->rest_base, array( array( 'methods' => WP_REST_Server::READABLE, 'callback' => array( $this, 'export' ), 'permission_callback' => array( $this, 'permissions_check' ), ), ) ); }Introduced in 5.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api/endpoints/class-wp-rest-edit-site-export-controller.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.