@type t() :: %Sake.Client.Session{
  capabilities: term(),
  client_info: term(),
  era: term(),
  headers: term(),
  instructions: term(),
  next_id: term(),
  on_input: term(),
  req: term(),
  revision: term(),
  server_capabilities: term(),
  server_info: term(),
  session_id: term(),
  tools: term(),
  url: term()
}