Source node linking back to a specific step within an episode.
Summary
Types
@type t() :: %Mnemosyne.Graph.Node.Source{ created_at: DateTime.t(), embedding: [float()] | nil, episode_id: String.t(), id: String.t(), links: %{required(Mnemosyne.Graph.Edge.edge_type()) => MapSet.t()}, plain_text: String.t() | nil, step_index: integer() }