@type t() :: %Ash.Resource.Aggregate{
  default: term(),
  description: String.t() | nil,
  field: atom(),
  filter: Keyword.t(),
  filterable?: term(),
  kind: :count | :first | :sum | :list,
  name: atom(),
  private?: boolean(),
  relationship_path: [atom()],
  sort: term()
}