pub fn not_before(&self) -> Option<SystemTime> {
        match self.claims.get("nbf") {
            Some(Value::Number(val)) => match val.as_u64() {
                Some(val) => Some(SystemTime::UNIX_EPOCH + Duration::from_secs(val)),
                None => None,
            },
            _ => None,
        }
    }
/// Return the system time for not before payload claim (nbf).
Return the system time for not before payload claim (nbf).
Return the system time for not before payload claim ( nbf ) .
pub fn not_before(&self) -> Option<SystemTime> {
        match self.claims.get("nbf") {
            Some(Value::Number(val)) => match val.as_u64() {
                Some(val) => Some(SystemTime::UNIX_EPOCH + Duration::from_secs(val)),
                None => None,
            },
            _ => None,
        }
    }
pub fn not_before ( & self ) -> Option < SystemTime > { match self . claims . get ( " " ) { Some ( Value :: Number ( val ) ) => match val . as_u64 ( ) { Some ( val ) => Some ( SystemTime :: UNIX_EPOCH + Duration :: from_secs ( val ) ) , None => None , } , _ => None , } }
Return the system time for not before payload claim (nbf).
Return the system time for not before payload claim ( nbf ) .
&self
&self