How to skip fields with default values in JSON response in HotChocolate/GraphQl

Question

I want to remove fields from output JSON with default values (0, false) to reduce size of response, but can't find a way how to do it in HotChocolate/GraphQl. I didn't find a settings to control it (JsonFormatter), "Optional" also not for this purposes, and there is not options to do it via query syntax.

After query to graphQl I receive a long list, with many default values in JSON output, simple example, pay attention to "sortOrder" and "isDeleted":

"values": [{
    "id": 448,
    "name": "Dr.",
    "isDeleted": false,
    "sortOrder": 0
}, {
    "id": 449,
    "name": "Mr.",
    "isDeleted": true,
    "sortOrder": 0
}, {
    "id": 450,
    "name": "Mrs.",
    "isDeleted": false,
    "sortOrder": 1
}]

Expecting result:

"values": [{
    "id": 448,
    "name": "Dr.",
}, {
    "id": 449,
    "name": "Mr.",
    "isDeleted": true,
}, {
    "id": 450,
    "name": "Mrs.",
    "sortOrder": 1
}]

Query:

getLookups(withDeleted: true) {
    id
    name
    isDeleted
    values {
      id
      name
      isDeleted
      sortOrder
    }
}

Type description:

descriptor.BindFields(BindingBehavior.Explicit);
descriptor.Interface<ILookupValueType>();
descriptor.Field(f => f.Id).Type<NonNullType<IntType>>();
descriptor.Field(f => f.Name).Type<StringType>();
descriptor.Field(f => f.Image).Type<StringType>();
descriptor.Field(f => f.IsDeleted).Type<BooleanType>();
descriptor.Field(f => f.IsDefault).Type<BooleanType>();
descriptor.Field(f => f.SortOrder).Type<IntType>();

P.S. Please, don't offer pagination, it is not what I need.

And thank you for your help.