package Ġex ni hi loc reat io . api . regist ries Ċ Ċ interface ĠI Bar rel Liquid Black list Registry Ġ: ĠI Registry Mapped List < Int , ĠString > Ġ{ ĊĠĠĠ Ġfun Ġis Black listed ( level : ĠInt , Ġfluid : ĠString ): ĠBoolean ĊĠĠĠ Ġfun Ġregister ( level : ĠInt , Ġfluid : ĠString ) Ċ }