Possible known values of the categorical variable. If not passed
then the function will take an additional step to figure the unique values of
the variable.
auto_values
Safeguard argument to prevent the function from figuring the
unique values if the values argument is empty. If it is ok for this function
to obtain the unique values, set to TRUE. Defaults to FALSE.
remove_original
It removes the original variable from the returned table.
Defaults to TRUE.