- field(:object, Types.ObjectID)
- field(:actor, Types.ObjectID)
- field(:to, {:array, :string}, default: [])
- field(:cc, {:array, :string}, default: [])
+ field(:object, ObjectValidators.ObjectID)
+ field(:actor, ObjectValidators.ObjectID)
+ field(:to, ObjectValidators.Recipients, default: [])
+ field(:cc, ObjectValidators.Recipients, default: [])