@type t() :: %Bonfire.Data.AccessControl.InstanceAdmin{
  __meta__: Ecto.Schema.Metadata.t(),
  id: Needle.UID.t() | nil,
  is_instance_admin: boolean() | nil,
  pointer: Ecto.Schema.belongs_to(Needle.Pointer.t()) | nil,
  user: Ecto.Schema.belongs_to(Bonfire.Data.Identity.User.t()) | nil,
  user_id: Needle.UID.t() | nil
}