cols(
  a = [32mcol_double()[39m,
  b = [32mcol_integer()[39m,
  c = [33mcol_logical()[39m,
  d = [31mcol_character()[39m,
  e = [34mcol_date(format = "")[39m,
  f = [34mcol_datetime(format = "")[39m,
  g = [34mcol_time(format = "")[39m,
  h = [31mcol_factor(levels = NULL, ordered = FALSE, include_na = FALSE)[39m,
  i = col_skip()
)
