fn from_epoch() -> AppResult<Duration> {
    SystemTime::now()
        .duration_since(SystemTime::UNIX_EPOCH)
        .map_err(|e| context!(e, "duration_since() error",))
}
// utility functions to get the number of seconds from 1/1/1970
utility functions to get the number of seconds from 1/1/1970
utility functions to get the number of seconds from 1 / 1 / 1970
fn from_epoch() -> AppResult<Duration> {
    SystemTime::now()
        .duration_since(SystemTime::UNIX_EPOCH)
        .map_err(|e| context!(e, "duration_since() error",))
}
fn from_epoch ( ) -> AppResult < Duration > { SystemTime :: now ( ) . duration_since ( SystemTime :: UNIX_EPOCH ) . map_err ( | e | context ! ( e " " ) ) }
utility functions to get the number of seconds from 1/1/1970
utility functions to get the number of seconds from 1 / 1 / 1970