1441 change default value of decorators parameter in example_module (#1449)

The same changes as in
insightsengineering/teal.modules.general#826
We are unifying `decorators` and `transformators` default values for
modules

Author: m7pr

R/dummy_functions.R

@@ -9,8 +9,8 @@
 #' to read more about decorators.
 #'
 #' @inheritParams teal_modules
-#' @param decorators `r lifecycle::badge("experimental")` (`list` of `teal_transform_module` or `NULL`) optional,
-#' if not `NULL`, decorator for tables or plots included in the module.
+#' @param decorators `r lifecycle::badge("experimental")` (`list` of `teal_transform_module`) optional,
+#' decorator for `object` included in the module.
 #'
 #' @return A `teal` module which can be included in the `modules` argument to [init()].
 #' @examples
@@ -25,9 +25,9 @@
 example_module <- function(label = "example teal module",
                            datanames = "all",
                            transformators = list(),
-                           decorators = NULL) {
+                           decorators = list()) {
   checkmate::assert_string(label)
-  checkmate::assert_list(decorators, "teal_transform_module", null.ok = TRUE)
+  checkmate::assert_list(decorators, "teal_transform_module")
 
   ans <- module(
     label,