Allow NULL paramcd value in tm_t_summary_by (#1083)

# Pull Request

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Fixes #1082

Required version of `teal.data` should be updated after merging
insightsengineering/teal.data#301.

Co-authored-by: Pawel Rucki <[email protected]>

NEWS.md

@@ -3,6 +3,9 @@
 ### Enhancements
 * Updated `tm_g_forest_rsp` and `tm_g_forest_tte` to use refactored version of `g_forest`. Plots are now displayed as `ggplot` objects instead of `grob` objects. Added parameters `font_size` and `rel_width_forest` to control font size and width of plot relative to table, respectively.
 
+### Enhancements
+* Updated `tm_t_summary_by` to allow `NULL` input to `paramcd` argument.
+
 ### Miscellaneous
 * Removed `formatters` from dependencies and replaced the use of its functions relating to variable labels with functions from `teal.data`.
 

R/tm_t_summary_by.R

@@ -402,7 +402,7 @@ tm_t_summary_by <- function(label,
   checkmate::assert_class(by_vars, "choices_selected")
   checkmate::assert_class(summarize_vars, "choices_selected")
   checkmate::assert_class(id_var, "choices_selected")
-  checkmate::assert_class(paramcd, "choices_selected")
+  checkmate::assert_class(paramcd, "choices_selected", null.ok = TRUE)
   checkmate::assert_class(denominator, "choices_selected")
   checkmate::assert_flag(add_total)
   checkmate::assert_string(total_label)