WP_REST_Icon_Collections_Controller::get_icon_collection( string $slug ): array|WP_Error

163	public function get_icon_collection( $slug ) {164		$registry   = WP_Icon_Collections_Registry::get_instance();165		$collection = $registry->get_registered( $slug );166 167		if ( null === $collection ) {168			return new WP_Error(169				'rest_icon_collection_not_found',170				sprintf(171					/* translators: %s: Icon collection slug. */172					__( 'Icon collection not found: "%s".' ),173					$slug174				),175				array( 'status' => 404 )176			);177		}178 179		return $collection;180	}