def aria_d19
import bend-osdev-aria@0.1.0.0/PROOF.bend as PROOFimport Base
import bend-osdev-aria@0.1.0.0/aria.bend as A
6608def aria_d19(+s: A.LcAriaSt) -> {s == A.aria.u19(A.aria.d19(s)) : A.LcAriaSt}:
6609 %aria_e18(A.aria.d18(s)) : {s == A.aria.u18(_) : A.LcAriaSt}
6610 aria_d18(s)