pub fn parse_duration(x: &Value) -> Option<Duration>Expand description
Parse a duration string: Dataview’s <number> <unit> pairs, each pair
separated from the next by spaces, a comma, or nothing ("1h30m", "2 days, 3 hours"; a trailing separator is malformed), units
case-insensitive: y|yr|yrs|year|years, mo|mos|month|months,
w|wk|wks|week|weeks, d|day|days, h|hr|hrs|hour|hours,
m|min|mins|minute|minutes, s|sec|secs|second|seconds — or an ISO-8601
duration (P1DT2H, PT90M, P2W). None when it is neither.