pub fn parse_ttl(literal: &str) -> Result<Duration, TtlParseError>Expand description
Parse a TTL literal from CACHE TTL '<lit>'.
Accepts <integer><unit> with units s (seconds), m (minutes),
h (hours), d (days). Whitespace is not allowed. The integer
must be > 0; a zero TTL would mean “expire immediately” which is a
foot-gun the parser refuses on the user’s behalf.