Made changes to add_header_left.
Change the name of attr original_kable_meta to kable_meta
diff --git a/R/collapse_rows.R b/R/collapse_rows.R
index d3b8255..a0e0ac8 100644
--- a/R/collapse_rows.R
+++ b/R/collapse_rows.R
@@ -76,7 +76,7 @@
   #
   # out <- sub(target_row, new_row, as.character(kable_input), perl = T)
   # out <- structure(out, format = "latex", class = "knitr_kable")
-  # attr(out, "original_kable_meta") <- table_info
+  # attr(out, "kable_meta") <- table_info
   # return(out)
   kable_input
 }