Excluding Data
Frost provides another Deocrator Exclude, so you can mark the properties that you don't want to be serialzied and pushed to the server.
@FrostEntity({collectionPath:"/users"})
class User extends FrostObject<User>{
    id?:string
    name!:string
    userType!: "Customer" | "Admin"
    @Exclude()
    selected?:boolean;
    @Exclude()
    localProperty?:boolean;
    ...
}