如何在R中使用networkD3不显示SankeyDiagram中的节点或链接中的值

library(networkD3)

# 创建一个简单的Sankey Diagram数据
links <- data.frame(
  source = c("A", "A", "B", "B"),
  target = c("X", "Y", "X", "Y"),
  value = c(10, 20, 30, 40)
)

# 创建一个空的Sankey Diagram
sankey <- sankeyNetwork(
  Links = links,
  Nodes = NULL,
  Source = "source",
  Target = "target",
  Value = "value",
  NodeID = "node"
)

# 设置节点和链接的值为NULL
sankey$links$value <- NULL
sankey$nodes$value <- NULL

# 显示Sankey Diagram
sankey