How to use a jq library?
jq 'include "timesheet"; time_to_duration' <<< '"0:15"'
jq 'include "timesheet"; duration' <<< '["01:01", "06:37"]'
jq 'include "timesheet"; total_duration' <<< '["01:59", "02:02", "03:03"]'
jq 'include "timesheet"; total_duration' <<< '["00:10", "00:01", "00:12", "0:10"]'