3 d @sddlmZddlmZddljjZejZ ddZ ddZ dd Z d d Z d d ZddZddZeejdddZeejdddZdS)) lru_cache)_generated_parserNcCs*|\}}}|jdk}t||jt||S)aj Handle an expression of the form "a.b" or "a:b". Parameters ---------- trees : list of lark.tree.Tree The children tree for the "series" rule. It should always contain exactly three items. notify : bool True if the final target should notify, else False. Returns ------- expression : ObserverExpression notify)data _handle_treeZthen)treesrleftZ connectorrightZ notify_leftr s