CryptoCertificateValidity import { CryptoCertificateValidity } from "destack:crypto/binding"; Certificate validity window. export struct CryptoCertificateValidity { notBeforeUnixSeconds: uint64; notAfterUnixSeconds: uint64; } language/library/src/crypto/binding/certificate.ds:125:130 Members notBeforeUnixSeconds: uint64 Not-before timestamp in Unix seconds. notAfterUnixSeconds: uint64 Not-after timestamp in Unix seconds.