A valid async data service whose members are EXACTLY what the object schema S
describes: no described member missing, and no undescribed member present.
S is sideloaded — supplied as a second type argument from typeof MyService.schema
(a ... as const satisfies Schema), never read off the service instance. For an
exact match, S needs required: [...all members] and additionalProperties: false.
A valid async data service whose members are EXACTLY what the object schema
Sdescribes: no described member missing, and no undescribed member present.Sis sideloaded — supplied as a second type argument fromtypeof MyService.schema(a... as const satisfies Schema), never read off the service instance. For an exact match,Sneedsrequired: [...all members]andadditionalProperties: false.