-- schema.cue --
a: [...#D]

#D: {
    a: int @protobuf(1,int64)
}

b: [1, ...] // Don't include schema fields if not in value

c: [{a: 1}, ...]
c: [...#D]

-- value.cue --
// Hello
a: [
    {a: 1},
]

c: [{a: 1}, {a: 2}]

-- out/jsonpb --
// Hello
a: [
	{a: "1"},
]

c: [{a: "1"}, {a: "2"}]