-module(bt_tree).
-include("./bt_nodes.hrl").


-callback get_bb_keys() -> Keys :: list(string()).

-callback get_params() -> Params :: list(string()).

%% in a subtree, we generally declare blackboard keys and then define the
%% whole subtree
-callback get_tree(Params :: term(), BBKeys :: term()) ->
  Node :: decorator() | sequence() | selector().