fn grouped_code(run: &[Token]) -> Option<String>Expand description
Digits printed in groups of the same size, 4 to 8 in all: “482 913”, “48 29 13”, “4 8 2 9 1 3”, “4829 1357”. A phone number (“06 12 34 56 78”), a card’s number or an amount (“120 450 €”) is none.