How I can configure "metalness" parameter for the globe render on echarts4r?

Question

Hi and thanks for reading me I'm currently working on a globe made with echarts (inside echarts4r) and would like to set a parameter that I saw in their official documentation, which is: "realisticMaterial.metalness", but so far I couldn't get it to work. In the official documentation displays the parameter as follows:

I wanted to adapt the code inside echats4r in the following way:

library(echarts4r.assets)
library(echarts4r)

airports <- read.csv(
  paste0("https://raw.githubusercontent.com/plotly/datasets/",
         "master/2011_february_us_airport_traffic.csv")
)

airports |> 
  e_charts(long) |> 
  e_globe(
    viewControl = list(rotateSensitivity = 5),
    realisticMaterial = list(metalness = 1),
    globeOuterRadius = 100
  ) |> 
  e_scatter_3d(lat, cnt, coord_system = "globe", blendMode = 'lighter') |> 
  e_visual_map(inRange = list(symbolSize = c(1, 10))) |> 
  e_color(background = "transparent")

But I haven't been able to get it to work, does anyone know what I could be doing wrong?

Thanks for the help