Series options for specific data and the data itself. In TypeScript you have to cast the series options to specific series types, to get all possible options for a series.
highchart()%>% hc_series( list( name ="Tokyo", data = c(7.0,6.9,9.5,14.5,18.4,21.5,25.2,26.5,23.3,18.3,13.9,9.6)), list( name ="London", data = c(3.9,4.2,5.7,8.5,11.9,15.2,17.0,16.6,14.2,10.3,6.6,4.8)))