SYNOPSIS
unpack(list[,i[,j]])
DESCRIPTION
Returns the elements from the given table. This function is equivalent to
return list[i], list[i+1], ···, list[j]
except that the above code can be written only for a fixed number of elements. By default, i is 1 and j is the length of the list, as defined by the length operator.
RETURN VALUE
Returns the elements from the given table.