When evaluating each row of a data frame in matsindf_apply(),
the result will be a tibble with list columns.
This function tells whether a column can be unlisted.
This is internal helper function and should not be called externally.
When evaluating each row of a data frame in matsindf_apply(),
the result will be a tibble with list columns.
This function tells whether a column can be unlisted.
This is internal helper function and should not be called externally.