Builds a pillar::pillar_shaft() for a list-column. When every element is a
scalar (length-1 atomic) that can be combined to a common type, the column is
formatted natively (significant figures, alignment, colour, width shrinking).
Otherwise each element is formatted individually: scalars as their value and
everything else as the standard tibble summary (<chr [2]>, <fn>,
<NULL>, ...). NULL elements are always shown as <NULL> (rather than
coerced to NA).
card_list_shaft(x, ...)a pillar_shaft object
(list)
a list-column
passed to the underlying pillar shaft constructors