aqua StreamMapTest declares * export testGetFunc, Srv service Srv("baaa"): g() -> string func testGetFunc() -> []string, []string, []string, u32: streamMap: %string key = "key" resEmpty = streamMap.get(key) streamMap <<- key, "first value" resFirst = streamMap.get(key) streamMap <<- key, "second value" resSecond = streamMap.get(key) <- resEmpty, resFirst, resSecond, resSecond.length