@spec all_domains() :: [Mobilizon.Instances.Instance.t()]

@spec create_instance_actor(map()) ::
  {:ok, Mobilizon.Instances.InstanceActor.t()} | {:error, Ecto.Changeset.t()}

@spec delete_instance_actor(Mobilizon.Instances.InstanceActor.t()) ::
  {:ok, Post.t()} | {:error, Ecto.Changeset.t()}

@spec get_instance_actor(String.t()) :: Mobilizon.Instances.InstanceActor.t() | nil

@spec instance(String.t()) :: Mobilizon.Instances.Instance.t() | nil

@spec instances(Keyword.t()) ::
  Mobilizon.Storage.Page.t(Mobilizon.Instances.Instance.t())

@spec refresh() :: %{
  :rows => nil | [[term()] | binary()],
  :num_rows => non_neg_integer(),
  optional(atom()) => any()
}

@spec update_instance_actor(Mobilizon.Instances.InstanceActor.t(), map()) ::
  {:ok, Mobilizon.Instances.InstanceActor.t()} | {:error, Ecto.Changeset.t()}