Module type `Interfaces.PRINT_DE_BRUIJN`

type t
type term
type print_hook = int -> term CCFormat.printer -> Stdlib.Format.formatter -> term -> bool: User-provided hook that can be used to print terms (for composite cases) before the default printing occurs. The int argument is the De Bruijn depth in the term. A hook takes as arguments the depth and the recursive printing function that it can use to print subterms. A hook should return true if it fired, false to fall back on the default printing.