This tibble contains data of a few different classes, which makes it
well-suited for quick experimentation with the functions in this package. It
contains only eight rows with numeric, character, and factor columns. The
last 4 rows contain NA values in the majority of this tibble's columns (1
missing value per column). The date, time, and datetime columns are
character-based dates/times in the familiar ISO 8601 format. The row and
group columns provide for unique rownames and two groups (grp_a and
grp_b) for experimenting with the gt() function's rowname_col and
groupname_col arguments.