@callback call_tool(
  conn :: pid(),
  tool_name :: String.t(),
  args :: map(),
  timeout :: integer()
) ::
  {:ok, any()} | {:error, term()}

@callback call_tool_stream(
  conn :: pid(),
  tool_name :: String.t(),
  args :: map(),
  timeout :: integer()
) :: {:ok, Enumerable.t()} | {:error, term()}

@callback close(conn :: pid()) :: :ok | {:error, term()}

@callback get_last_used(conn :: pid()) :: integer()

@callback start_link(provider :: map()) :: {:ok, pid()} | {:error, term()}

@callback update_last_used(conn :: pid()) :: :ok