useful when you want to place a ggplot and gt table side-by-side. To use this function you must install the magick R package AND system program (see https://docs.ropensci.org/magick/articles/intro.html#installing-magick-1)
as_ggplot(x, ...)gt or gtsummary table
arguments passed to gt::gtsave()
a ggplot object
Other gtsummary-related functions: 
add_inline_forest_plot(),
add_sparkline(),
bold_italicize_group_labels(),
logistic_reg_adj_diff(),
style_tbl_compact(),
tbl_likert(),
theme_gtsummary_msk()
library(gtsummary)
library(ggplot2)
library(patchwork)
# # convert gtsummary table to ggplot
# tbl <-
#  trial %>%
#  select(age, marker, trt) %>%
#  tbl_summary(by = trt, missing = "no") %>%
#  as_ggplot()
#
# # create basic ggplot
# gg <-
#  trial %>%
#  ggplot(aes(x = age, y = marker, color = trt)) +
#  geom_point()
#
# # stack tables using patchwork
# gg / tbl