total_hoursstring required
maintenancestring required
created_atstring date-time required
updated_atstring date-time required
deleted_atstring date-time nullable
type'owned' | 'hired'
- owned - owned
- hired - hired
costnumber double nullable
cost_unit'hour' | 'day' | 'week' | 'month'
- hour - hour
- day - day
- week - week
- month - month
registrationstring nullable